{"data":[{"id":"10.82308/34081","type":"dois","attributes":{"doi":"10.82308/34081","identifiers":[{"identifier":"hyrax:k35697802","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/112208","identifierType":"uri"}],"creators":[{"name":"Rémillard, Jasmine","nameType":"Personal","givenName":"Jasmine","familyName":"Rémillard","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Remote sensing of drizzle onset and cloud microphysical properties in marine stratocumulus"}],"publisher":"McGill University","container":{},"publicationYear":2013,"subjects":[{"lang":"","subject":"Earth Sciences - Atmospheric Sciences"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Pavlos Kollias (Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-19","dateType":"Accepted"},{"date":"2013","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Pavlos Kollias (Supervisor)","descriptionType":"Other"},{"lang":"fr","description":"Les nuages stratiformes de basse altitude restent un des facteurs imprévisibles dans les simulations du climat futur. Malgré leur rôle important dans le budget radiatif terrestre et le grand nombre de campagnes de terrain dédiées, plusieurs procédés à l'échelle nuageuse dans les stratocumulus marins demeurent mal représentés. Le déploiement dans les Açores d'un laboratoire mobile du programme « Atmospheric Radiation Measurement » pendant 19 mois a fourni l'ensemble de données d'observation au sol sur les nuages de couche limite marine le plus long et le plus complet à ce jour. Le premier objectif de ce projet fut la documentation de la fréquence d'apparition de différents systèmes de nuages et de précipitations dans les Açores en utilisant une combinaison de mesures passives et actives. L'analyse indique que, même si des nuages étaient souvent observés (près de 80 % du temps), en particulier dans la couche limite (~50 %), une couverture de stratocumulus seul persistait rarement plus d'une journée. En fait, de nombreux stratocumulus furent observés avec des cumulus en dessous. Ceci est lié à l'état découplé de la couche limite quasi-constant dans les Açores, contrairement à ce qui a été observé dans les stratocumulus du Pacifique. 35 cas de couverture d'un stratocumulus persistant principalement seul furent sélectionnés pour une analyse approfondie. Les résultats incluent des similarités avec d'autres études (par exemple, une couverture maximale durant la nuit, un besoin de nuages plus épais pour bruiner et l'importance du refroidissement radiatif au haut des nuages durant la nuit), ainsi que des différences (par exemple, les structures cohérentes représentent une plus petite fraction du flux ascendant de masse). Le deuxième objectif de ce projet fut de revisiter la détection des particules de bruine dans les stratocumulus en utilisant les observations radar. Tout d'abord, les distributions de tailles des gouttelettes de nuage et de bruine sont liées théoriquement aux mesures radar, en incluant les effects dynamiques. Ensuite, un modèle direct de spectres Doppler radar fut développé pour tester la sensibilité des mesures radar à des modifications de la contribution de la bruine. Finalement, un simple modèle 1-D à l'état d'équilibre fut exploité pour simuler la croissance de la bruine pendant sa descente dans un nuage, en utilisant le modèle direct pour relier de nouveau les données sortantes avec les observations radar. En utilisant cette combinaison de modèles, quelques caractéristiques de l'évolution de la bruine observées à l'intérieur de nuages stratocumulus continental et maritime furent examinées avec succès. Dans l'ensemble, il fut déterminé que l'asymétrie d'un spectre Doppler radar est un bon indicateur de la présence de jeunes gouttelettes de bruine, alors qu'un seuil de réflectivité ou de vitesse Doppler indique le changement de domination dans le spectre Doppler se produisant quand la bruine est bien développée. Le troisième et final objectif de ce projet fut de revisiter un autre défi de longue date : le recouvrement de propriétés microphysiques des nuages en utilisant une combinaison de mesures radar et radiométriques. Une nouvelle technique fut développée pour retrouver la distribution de tailles des particules nuageuses, en ajoutant un modèle microphysique de condensation dans des conditions de supersaturation en équilibre à une méthode populaire de recouvrement. Les résultats semblent raisonnables pour deux stratocumulus marins ne bruinant pas et la profondeur optique dérivée pour ces nuages se compare bien avec celle dérivée indépendamment avec un autre instrument. Les erreurs de recouvrement furent également estimées, démontrant la valeur ajoutée de la nouvelle technique.","descriptionType":"Abstract"},{"lang":"en","description":"Low-level stratiform clouds remain one of the wildcards in future climate simulations. Despite their important role in the earth's radiation budget and the large number of dedicated field campaigns, several cloud-scale processes in marine stratocumulus clouds remain misrepresented. The 19-month-long deployment of the Atmospheric Radiation Measurement Program Mobile Facility in the Azores provided the longest and most comprehensive ground-based observational dataset of marine boundary layer clouds to date. The first objective of this project was the documentation of the frequency of occurrence of different cloud and precipitation systems in the Azores using a combination of passive and active measurements. The analysis indicates that, even though clouds were often observed (close to 80 % of the time), especially in the boundary layer (~50 %), a single-layer stratocumulus coverage rarely persisted more than a day. In fact, many stratocumulus clouds were observed to have cumulus clouds underneath them. This is linked to the nearly constant decoupled state of the boundary layer in the Azores, contrary to what has been observed in the Pacific decks. 35 cases of mostly single-layer persisting stratocumulus coverage were selected for further analysis. Results include similarities with other studies (e.g., maximum coverage at night, thicker clouds needed to drizzle, and importance of cloud-top radiative cooling at night), as well as differences (e.g., coherent structures account for a smaller fraction of the updraft mass flux). The second objective of this project was to revisit the detection of drizzle-size particles in stratocumulus clouds using radar observations. First, the cloud and drizzle size distributions are related theoretically to the radar measurements, including the effects of the dynamics. Then, a forward radar Doppler spectra model was developed to test the sensitivity of the radar measurements to modifications of the drizzle contribution. Finally, a simple 1-D steady-state model was exploited to simulate drizzle growth as it falls in a cloud, using the forward model to link the output back to the radar observations. Using that combination of models, some observed features of the drizzle evolution inside continental and maritime stratocumulus clouds were successfully investigated. Overall, it was found that the skewness of a radar Doppler spectrum is a good indicator of the presence of early drizzle droplets, while a reflectivity or Doppler velocity threshold indicates the change in dominance in the Doppler spectrum occurring when drizzle is well developed. The third and final objective of this project was to revisit another long-standing challenge: the retrieval of cloud microphysical properties using a combination of radar-radiometer measurements. A new technique was developed to retrieve the cloud particle size distribution in stratocumulus clouds, adding a microphysical condensational model under steady-state supersaturation conditions to a common retrieval method. The results appear reasonable in two nondrizzling marine stratocumulus clouds, and the derived cloud optical depth compares well with the one derived independently with another instrument. The errors of the retrievals were also estimated, demonstrating the added value of the new technique.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/112208","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T22:11:18Z","registered":"2026-05-21T22:11:19Z","published":null,"updated":"2026-05-26T00:54:36Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/53743","type":"dois","attributes":{"doi":"10.82308/53743","identifiers":[{"identifier":"hyrax:n296wz84v","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/136399","identifierType":"uri"}],"creators":[{"name":"Clavijo, Claret Michelangeli de","nameType":"Personal","givenName":"Claret Michelangeli de","familyName":"Clavijo","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Effects of low temperature applied at early growth stages on pepper development and anatomy (Capsicum annuum L. cv Lady Bell)"}],"publisher":"McGill University","container":{},"publicationYear":1990,"subjects":[{"lang":"","subject":"Peppers -- Anatomy"},{"lang":"","subject":"Peppers -- Effect of low temperatures on"},{"lang":"","subject":"Peppers -- Development"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]}],"dates":[{"date":"2026-03-21","dateType":"Accepted"},{"date":"1990","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"This item was digitized as part of a project to share McGill's intellectual legacy with the public. If you are the copyright holder or a relative of the copyright holder who is deceased, you may request withdrawal by emailing escholarship.library@mcgill.ca. The full policy for eScholarship may be accessed here: https://www.mcgill.ca/libraries/research-services/escholarship/policy","descriptionType":"Other"},{"lang":"en","description":"Pepper (Capsicum annuum L.), which originates from tropical environments is particularly sensitive to low temperatures. The Canadian climate, with its risks of cool temperatures during spring time, greatly limits the production of this temperature-sensitive crop. This work dealt with pepper plant exposure to low temperatures (9 and 15$ sp circ$C), at two early growth stages. 'Lady Bell' pepper plants were grown from seed under controlled conditions of 21$ sp circ$C, 50 $ pm$ 10% R.H., 16/8 light/dark cycle and 300 $ mu$molm$ sp{-2} / rm s sp{-1}$ PAR at the canopy level. Once plants had reached either the cotyledonary or the three-true-leaf stage low temperatures were applied. Treatment conditions lasted until plants had produced three additional leaves after which they were returned to the pretreatment conditions. Evaluations were made at six recognized developmental stages and included destructive measurements for growth analysis, pigment content and leaf anatomical features as well as weekly non-destructive measurements. Results showed that plant responses to 9 and 15$ sp circ$C were not the same when applied at the cotyledonary or the three-true-leaf stage. Overall growth decreased with decreasing temperatures and plants exposed to 9$ sp circ$C at the cotyledonary stage died. Plants exposed to cold treatments underwent a whole complex of changes in morphology which included reduction in leaf size, stem diameter, internode length and on leaf, branch and developing fruit abnormalities. Dry matter accumulation and distribution, leaf area production and leaf pigment levels varied with treatments. The anatomical changes which included alterations in epidermal and mesophyll cell dimensions and arrangement were reminiscent of a general response to a wide range of stress conditions reported for several other plant species. Upon return to the control temperature recovery was clearly observed especially in those plants exposed to the 15$ sp circ$C treatments. Plants ex","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/136399","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T18:20:58Z","registered":"2026-05-21T18:21:00Z","published":null,"updated":"2026-05-26T00:53:04Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/48663","type":"dois","attributes":{"doi":"10.82308/48663","identifiers":[{"identifier":"hyrax:xp68kh291","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/138048","identifierType":"uri"}],"creators":[{"name":"Taylor, Bea (Beatrice Elizabeth)","nameType":"Personal","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"The energy balance climate of Meighen Ice Cap, N.W.T. /"}],"publisher":"McGill University","container":{},"publicationYear":1974,"subjects":[{"lang":"","subject":"Northwest Territories -- Climate"},{"lang":"","subject":"Ice -- Northwest Territories -- Meighen Island"},{"lang":"","subject":"Energy budget (Geophysics)"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]}],"dates":[{"date":"2026-03-21","dateType":"Accepted"},{"date":"1974","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"This item was digitized as part of a project to share McGill's intellectual legacy with the public. If you are the copyright holder or a relative of the copyright holder who is deceased, you may request withdrawal by emailing escholarship.library@mcgill.ca. The full policy for eScholarship may be accessed here: https://www.mcgill.ca/libraries/research-services/escholarship/policy","descriptionType":"Other"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/138048","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-20T16:05:59Z","registered":"2026-05-20T16:06:01Z","published":null,"updated":"2026-05-26T00:52:10Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/44483","type":"dois","attributes":{"doi":"10.82308/44483","identifiers":[{"identifier":"hyrax:4t64gq851","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/133758","identifierType":"uri"}],"creators":[{"name":"Backer, Rachel","nameType":"Personal","givenName":"Rachel","familyName":"Backer","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Biochar soil amendments in southwestern Québec, Canada: an investigation of impact on crop yields, interaction with N fertilizer and characterization of the biochar volatilome"}],"publisher":"McGill University","container":{},"publicationYear":2017,"subjects":[{"lang":"","subject":"Plant Science"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Seguin, Philippe (Supervisor2)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]},{"name":"Smith, Donald L. (Supervisor1)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-21","dateType":"Accepted"},{"date":"2017","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Seguin, Philippe (Supervisor2)","descriptionType":"Other"},{"lang":"","description":"Smith, Donald L. (Supervisor1)","descriptionType":"Other"},{"lang":"en","description":"Biochar, produced from waste materials has shown promise for increasing crop yields while simultaneously sequestering atmospheric carbon into soils. When this project began, little data was available about biochar effects under temperate-zone field conditions. Therefore, the first goal of this project was to determine whether biochar can improve crop yields under Québec, Canada field conditions. The results of a three-year field experiment demonstrate that biochar produced from softwood chips, applied once to a loamy sand soil at 20 Mg ha-1, increases yield and grain N uptake of corn by 14.2 and 18.2 %, respectively, while yield and grain N uptake of soybean and switchgrass were not affected by biochar soil amendment. Biochar, applied once to a sandy clay loam at 20 Mg ha-1 increased soil organic carbon concentration under switchgrass and corn by more than the amount of carbon contributed by biochar. In order to further understand the mechanisms underlying the effects of biochar on corn yield and N uptake, two greenhouse experiments were conducted. In the first greenhouse experiment, biochar interactions with N fertilizer were examined to determine if biochar soil amendments improve N fertilizer recovery efficiency in temperate field soil. Corn was grown on soil amended with factorial combinations of biochar rate (0 and 20 Mg ha-1) and N fertilizer (0, 75, 150, 225 and 300 kg N ha-1). Plants were harvested at (1) the mid-vegetative stage for analysis of root structure, root and shoot biomass, plant N uptake and plant available N in soil and (2) at tasseling for analysis of root and shoot biomass, plant N uptake and plant available N in soil. Biochar increased soil available NH4-N, cation exchange capacity, root growth and root metabolic activity and N uptake at the R1 stage. Fertilizer recovery efficiency was increased in the presence of biochar when N fertilizer was applied at 75 and 150 kg N ha-1. Biochar stimulated early root development, allowing plants to take advantage of increased NH4-N retention concentration in soil by biochar thereby increasing FRE at the R1 stage at lower application rates.In the final chapter, biochar properties were linked to effects on plant growth using greenhouse and germination experiments along with redundancy analysis. Corn was grown in the greenhouse on soil amended with 26 Mg ha-1 softwood biochar produced at 500 ºC (PYR) or biosolids biochar produced at 270 ºC or 320 ºC (ALT and AHT, respectively). Plants were harvested at the V3 stage for analysis of root structure, root and shoot biomass, plant N uptake and plant available N in soil. A germination assay assessed the importance of biochar characteristics on germination, root and shoot development after four days. ALT negatively affected root development and biomass accumulation due to high N and volatile matter contents. AHT reduced root length due to a high H/C and volatile matter content but increased N mineralization in soil, biomass accumulation and N uptake in plants at the V3 growth stage. The high proportion of fixed C in PYR led to positive effects on root growth but did not alter biomass or N uptake. Results suggest that PYR increases plant resilience to drought and nutrient stresses while ALT and AHT provide fertilization value and increase N uptake at the V3 growth stage. Overall, this project determined (1) a suitable softwood biochar application rate to increase corn yields under Québec climate conditions, (2) that biochar can contribute to increased fertilizer recovery efficiency in corn production for temperate soils and (3) how biochar properties alter corn root development and N uptake. The benefits of this project include (1) increased corn yields in Québec, (2) improved fertilizer efficiency in Québec and (3) recycling of papermill and biosolid wastes; these aspects contribute to the economics of corn production and protection of the environment as a result of reduced N fertilizer application.","descriptionType":"Abstract"},{"lang":"fr","description":"Le biocharbon, a montré des résultats prometteurs pour augmenter les rendements des cultures. Lorsque ce projet a commencé, peu de données étaient disponibles sur les effets du biocharbon dans la zone climatique tempérée. Par conséquent, le premier objectif de ce projet était de déterminer si le biocharbon améliore les rendements des cultures au Québec, Canada. Les résultats d'un essai aux champs de trois ans démontrent que le biocharbon produit à partir de copeaux de bois, appliqué à 20 Mg ha-1, augmente le rendement et l'absorption de N du maïs de 14,2 et 18,2%, respectivement, tandis que le rendement et l'absorption de N du soja et le panic érigé ne sont pas affectés. Afin de comprendre les mécanismes sous-jacents aux effets du biocharbon, deux expériences en serre ont été menées.Dans la première expérience en serre, les interactions entre le biocharbon et l'engrais azoté ont été examinés afin de déterminer si l'addition du biocharbon au sol améliore l'efficacité de récupération de l'engrais azoté du maïs. Le maïs a été cultivé avec des combinaisons factorielles de taux de biocharbon (0 et 20 Mg ha-1) et d'engrais azoté. Les plantes ont été récoltées à (1) un stade végétatif pour l'analyse de la structure des racines, la biomasse sèche, l'absorption de l'azote par la plante et l'azote disponible dans le sol et (2) à l'étape de la formation des aigrettes pour l'analyse de la biomasse, l'absorption de l'azote par la plante et l'azote disponible dans le sol. Le biocharbon a augmenté le NH4-N disponible aux plantes dans le sol, la capacité d'échange des cations, la croissance et l'activité métabolique des racines et l'absorption de N. L'efficacité de récupération de l'engrais azoté a été augmentée en présence du biocharbon lorsque l'engrais azoté a été appliqué à 75 et 150 kg N ha-1. Le biocharbon a stimulé le développement des racines au stade végétatif, permettant aux plantes de profiter de la concentration plus élevée de NH4-N dans le sol, augmentant ainsi l'efficacité de la récupération de l'engrais azote.Dans le dernier chapitre, les propriétés du biocharbon ont été liées aux effets sur la croissance des plantes en utilisant des expériences en serre et de germination jumelées à une analyse de redondance. Le maïs a été cultivé en serre dans un sol avec 26 Mg ha-1 de biocharbon produit à partir de copeaux de bois (PYR) ou de biosolides produit à une température de 270 ou 320 °C (ALT et AHT, respectivement). Les plantes ont été récoltées à un stade végétatif pour l'analyse de la structure des racines, de la biomasse, de l'absorption de N dans les plantes et du N disponible dans les sols. Un test de germination a évalué l'importance des caractéristiques du biocharbon sur le développement des racines et des pousses après quatre jours. ALT a réduit le développement des racines et l'accumulation de la biomasse en raison de la teneur élevée en N et en matières volatiles. AHT a réduit la longueur des racines en raison d'une teneur élevée en matières volatiles et un ratio H:C élevé, mais a augmenté la minéralisation de N dans le sol, l'accumulation de biomasse et l'absorption de N dans les plantes à un stade végétatif. La haute teneur en C dans le PYR a augmenté la croissance des racines, mais n'a pas modifié la biomasse ou l'absorption de N au stade végétatif. En conclusion, ce projet a (1) identifié un taux approprié de biocharbon pour augmenter les rendements de maïs dans les conditions climatiques du Québec, (2) déterminé que le biocharbon peut contribuer à accroître l'efficacité de récupération d'engrais lors de la production de maïs et (3) déterminé que les composés organiques volatils et solubles dans l'eau du le biocharbon peuvent contribuer à augmenter l'absorption d'azote par le maïs. Ce projet aura contribué à identifier une approche pour: (1) augmenter les rendements du maïs au Québec, (2) augmenter l'efficacité des engrais azoté et (3) recycler des déchets de moulin à papier et de biosolides.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/133758","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T06:04:13Z","registered":"2026-05-21T06:04:14Z","published":null,"updated":"2026-05-26T00:49:51Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/16454","type":"dois","attributes":{"doi":"10.82308/16454","identifiers":[{"identifier":"hyrax:5425kc732","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/91769","identifierType":"uri"}],"creators":[{"name":"Ferrier, Jill","nameType":"Personal","givenName":"Jill","familyName":"Ferrier","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"The development of international space law : international cooperation in Outer Space - meeting the needs of the developing countries"}],"publisher":"McGill University","container":{},"publicationYear":1995,"subjects":[{"lang":"","subject":"International Law and Relations"},{"lang":"","subject":"Law"},{"subject":"FOS: Law","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Vlasic, Ivan A. (Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-18","dateType":"Accepted"},{"date":"1995","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Vlasic, Ivan A. (Supervisor)","descriptionType":"Other"},{"lang":"en","description":"This Thesis aims to examine recent efforts of the developing countries, within the Legal Subcommittee of the United Nations Committee on the Peaceful Uses of Outer Space (COPUOS), to increase their participation in space activities and in particular, to develop their own indigenous space capabilities. The Thesis will demonstrate that the United Nations is not, given the present economic and political climate, the best forum within which the developing countries should try to develop space law. Chapter 1 examines the main problems facing the developing countries in the transfer of space technology from the technologically advanced states. Chapter 2 examines the legal basis of their claims for greater cooperation. Chapter 3 examines the present debate within COPUOS where the developing countries are attempting to further develop international space law to their advantage. Chapter 4 suggests alternative routes which should be considered by the developing countries in order to work towards greater cooperation which will meet their needs.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/91769","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-22T02:44:55Z","registered":"2026-05-22T02:44:56Z","published":null,"updated":"2026-05-26T00:49:38Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/10537","type":"dois","attributes":{"doi":"10.82308/10537","identifiers":[{"identifier":"hyrax:z890s135q","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/131365","identifierType":"uri"}],"creators":[{"name":"Carrion-Aviles, Paola","nameType":"Personal","givenName":"Paola","familyName":"Carrion-Aviles","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"The terroir of the finch: Spatio-temporal dynamics in the evolution and ecology of Darwin’s finches"}],"publisher":"McGill University","container":{},"publicationYear":2025,"subjects":[{"lang":"","subject":"Biology"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Chaves, Jaime (Supervisor2)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]},{"name":"Hendry, Andrew (Supervisor1)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-20","dateType":"Accepted"},{"date":"2025","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Chaves, Jaime (Supervisor2)","descriptionType":"Other"},{"lang":"","description":"Hendry, Andrew (Supervisor1)","descriptionType":"Other"},{"lang":"en","description":"Study the dynamics of the evolutionary and ecological process in natural populations is crucial to understand how species are reacting to environmental change, today, so relevant in an increasing huma-mediated context. In this thesis, I use and ongoing radiation such as the Darwin’s finches to explore the spatio-temporal dynamics that contribute to the variation on their life-history traits, diversity and abundance in relation to human-caused activities such as climate change, urbanization and agriculture. In Chapter 1, I start by assessing the main contributions of temporal and spatial variation to changes in Darwin’s finches’ adaptive traits such as beak and body size and shape. In Chapter 2, I explore how long-term weather changes influence phenotypic traits patterns in two species of ground Darwin’s finches. In Chapter 3, I examine the effect of urbanization on finches’ adaptive traits by comparing parallel and non-parallel responses across and within species in urban and non-urban sites. Finally, in Chapter 4, I extended my analysis to an ecological perspective by assessing the environmental determinants of diversity and abundance of landbirds in the agricultural areas of Galapagos, where habitat modification poses challenges for native species, including Darwin’s finches. This thesis helps to understand how natural populations are coping with current modifications of their habitat and contributes with valuable information for the design of conservation strategies to protect these emblematic but also endangered species","descriptionType":"Abstract"},{"lang":"fr","description":"Étudier la dynamique des processus évolutifs et écologiques dans les populations naturelles est crucial pour comprendre comment les espèces réagissent aux changements environnementaux, aujourd'hui si pertinents dans un contexte de plus en plus médiatisé par l'homme. Dans cette thèse, j'utilise des rayonnements continus tels que ceux des pinsons de Darwin pour explorer la dynamique spatio-temporelle qui contribue à la variation de leurs traits d'histoire de vie, de leur diversité et de leur abondance en relation avec les activités d'origine humaine telles que le changement climatique, l'urbanisation et agriculture. Dans le chapitre 1, je commence par évaluer les principales contributions de la variation temporelle et spatiale aux changements dans les traits adaptatifs des pinsons de Darwin, tels que la taille et la forme du bec et du corps. Dans le chapitre 2, j’explore comment les changements météorologiques à long terme influencent les caractéristiques phénotypiques de deux espèces de pinsons de Darwin terrestres. Dans le chapitre 3, j’examine l’effet de l’urbanisation sur les traits adaptatifs des pinsons en comparant les réponses parallèles et non parallèles entre et au sein des espèces dans des sites urbains et non urbains. Enfin, au chapitre 4, j'ai étendu mon analyse à une perspective écologique en évaluant les déterminants environnementaux de la diversité et de l'abondance des oiseaux terrestres dans les zones agricoles des Galapagos, où la modification de l'habitat pose des défis aux espèces indigènes, notamment les pinsons de Darwin. Cette thèse permet de comprendre comment les populations naturelles font face aux modifications actuelles de leur habitat et apporte des informations précieuses pour la conception de stratégies de conservation visant à protéger ces espèces emblématiques mais également menacées","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/131365","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T23:42:03Z","registered":"2026-05-21T23:42:04Z","published":null,"updated":"2026-05-26T00:48:32Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/33459","type":"dois","attributes":{"doi":"10.82308/33459","identifiers":[{"identifier":"hyrax:h415pf78m","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/109033","identifierType":"uri"}],"creators":[{"name":"Cung, Annie.","nameType":"Personal","givenName":"Annie.","familyName":"Cung","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Statistical modeling of extreme rainfall processes in consideration of climate change"}],"publisher":"McGill University","container":{},"publicationYear":2007,"subjects":[{"lang":"","subject":"Rainfall probabilities -- Québec (Province)"},{"lang":"","subject":"Rainfall anomalies -- Québec (Province)"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]}],"dates":[{"date":"2026-03-19","dateType":"Accepted"},{"date":"2007","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."},{"rights":"© Annie Cung, 2007"}],"descriptions":[{"lang":"","description":"This item was digitized as part of a project to share McGill's intellectual legacy with the public. If you are the copyright holder or a relative of the copyright holder who is deceased, you may request withdrawal by emailing escholarship.library@mcgill.ca. The full policy for eScholarship may be accessed here: https://www.mcgill.ca/libraries/research-services/escholarship/policy","descriptionType":"Other"},{"lang":"en","description":"Extreme rainfall events may have catastrophic impacts on the population and infrastructures, therefore it is essential to have accurate knowledge of extreme rainfall characteristics. Moreover, both the scientific community and policymakers have recently shown a growing interest in the potential impacts of climate change on water resources management. Indeed, changes in the intensity and frequency of occurrence of extreme rainfall events may have serious impacts. As such, it is important to understand not only the current patterns of extreme rainfalls but also how they are likely to change in the future. The objective of the present research is therefore to find the best method for estimating accurately extreme rainfalls for the current time period and future periods in the context of climate change. The analysis of extreme rainfall data from the province of Quebec (Canada) revealed that, according to L-moment ratio diagrams, the data may be well described by the Generalized-Extreme-Value (GEV) distribution. Results also showed that a simple scaling relationship between non-central moments (NCM) and duration can be established and that a scaling method based on NCMs and scaling exponents can be used to generate accurate estimates of extreme rainfalls at Dorval station (Quebec, Canada). Other results demonstrated that the method of NCMs can accurately estimate distribution parameters and can be used to construct accurate Intensity-Duration-Frequency (IDF) curves. Furthermore, a regional analysis was performed and homogenous regions of weather stations within Quebec were identified. A method for the estimation of missing data at ungauged sites based on regional NCMs was found to yield good estimates. In addition, the potential impacts of climate change on extreme rainfalls were assessed. Changes in the distribution of annual maximum (AM) precipitations were evaluated using simulations from two Global Climate Models (GCMs) under the A2 greenhouse gas emission scenario: the Coupled Global Climate Model version 2 (CGCM2A2) of the Canadian Centre for Climate Modelling and Analysis, and the Hadley Centre's Model version 3 (HadCM3A2). Simulations from these two models were downscaled spatially using the Statistical DownScaling Model (SDSM). A bias-correction method to adjust the downscaled AM daily precipitations for Dorval station was tested and results showed that after adjustments, the values fit the observed AM daily precipitations well. The analysis of future AM precipitations revealed that, after adjustments, AM precipitations downscaled from CGCM2A2 increase from current to future periods, while AM precipitations downscaled from HadCM3A2 show a mild decrease from current to future periods, for daily and sub-daily scales.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/109033","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T09:03:44Z","registered":"2026-05-21T09:03:45Z","published":null,"updated":"2026-05-26T00:45:45Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/10611","type":"dois","attributes":{"doi":"10.82308/10611","identifiers":[{"identifier":"hyrax:gf06g677g","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/107907","identifierType":"uri"}],"creators":[{"name":"Nugent, Kelly","nameType":"Personal","givenName":"Kelly","familyName":"Nugent","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Carbon cycling at a post-extraction restored peatland: Small-scale processes to global climate impacts"}],"publisher":"McGill University","container":{},"publicationYear":2020,"subjects":[{"lang":"","subject":"Natural Resource Sciences"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Strack, Maria (Supervisor2)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]},{"name":"Strachan, Ian Brett (Supervisor1)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-19","dateType":"Accepted"},{"date":"2020","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Strack, Maria (Supervisor2)","descriptionType":"Other"},{"lang":"","description":"Strachan, Ian Brett (Supervisor1)","descriptionType":"Other"},{"lang":"en","description":"Peatlands store large amounts of organic carbon (C) and are an important component of the global climate system. Climate and peatland land surfaces are closely coupled through land-atmosphere exchanges of greenhouse gases (GHG), such as carbon dioxide (CO2) and methane (CH4). When undisturbed, peatlands exert a long-term (millennia) negative radiative GHG forcing (climate cooling) through CO2 removal from the atmosphere, and a short-term (decades) positive forcing (climate warming) with the addition of CH4 to the atmosphere. Peatland drainage and extraction, however, results in mineralization of stored peat, releasing large amounts of CO2 while generally reducing CH4 to minimal levels. Rewetting and actively restoring vegetation is now a restoration approach used to reduce CO2 emissions from degraded peatlands. However, the timeframe needed for restoration to re-establish the C sink function of an undisturbed peatland remains poorly constrained due to a lack of multi-year measurements. In this thesis, I analyze three years of eddy covariance flux measurements from a post-extraction restored peatland in eastern Quebec, Canada that was restored 14 years prior. I link these measurements with flux footprint modelling, stable isotope fractionation data and pore water concentrations to characterize how belowground C cycling and fluxes are impacted by restoration. I combine a series of flux towers at post-extraction unrestored and restored peatlands in eastern and western Canada with an atmospheric perturbation model to further reveal how after-use management is affecting the global climate.The post-extraction restored peatland was a C sink of 78 ± 17 g C m-2 yr-1 within fourteen years of restoration, due to strong CO2 uptake and small CH4 emission and dissolved organic carbon export. A comparison with an undisturbed reference peatland (Mer Bleue) revealed annual NEE at the restored peatland was most similar to wetter, more productive years at the reference peatland. A mapping of post-extraction (1980 onwards) canopy structure changes showed broad comparability between the restored peatland and surrounding intact peatland within five years of restoration. The enhanced vegetation index results suggest that the developing vegetation in general had a normal response to environmental factors and was not experiencing any enduring stress from the underlying cutover peat. While the processes behind the surface net CO2 flux appear successfully recovered, approximately two thirds of the restored peatland was a minimal source of CH4, suggesting a lag in the recovery of belowground C cycling processes. Carbon turnover in the cutover peat beneath the new Sphagnum layer was slow and appeared to occur only with E. vaginatum substrate input and plant-mediated transport. The C isotopic fractionation factor for CH4 and CO2 in the restored field pore water exhibited a dominance of acetoclastic methane production, even deeper in the cutover peat profile. In contrast, isotopic fractionation in the former drainage ditches showed a balance of acetoclastic and hydrogenotrophic methanogenesis deeper in the profile, indicating that some bulk peat C turnover was occurring. Over time (decades), C turnover of the new peat is expected to limit the impacts of the cutover peat on the surface CH4 flux.Flux measurements at unrestored sites in eastern and western Canada reveal that not restoring post-extraction peatlands leads to decades of CO2 addition to the atmosphere, with low CH4 emission. The after-use decision to not restore results in a positive radiative forcing seven times more powerful than the negative forcing achieved by active restoration after 500 years. Prompt active restoration achieves a neutral climate impact about 155 years earlier than restoration after a 20-year delay. In contrast, IPCC Tier 1 emission factors based on a wide range of rewetting activities display a continually positive radiative forcing, even with prompt rewetting","descriptionType":"Abstract"},{"lang":"fr","description":"Les tourbières stockent de grandes quantités de carbone (C) organique et constituent une composante importante du système climatique de la planète. Le climat et les surfaces de tourbières sont étroitement liés par des échanges de gaz à effet de serre (GES). Lorsqu'elles ne sont pas perturbées, les tourbières exercent un refroidissement du climat à long terme (millénaire) en éliminant le CO2 de l'atmosphère et provoquent un réchauffement climatique (décennies) avec un ajout de CH4 dans l'atmosphère. Cependant, le drainage et l’extraction des tourbières entraîne la minéralisation de la tourbe, libérant de grandes quantités de CO2 tout en réduisant généralement le CH4 à des niveaux minimaux. La réhumidification et la restauration active de la végétation sont désormais une approche de restauration utilisée pour réduire les émissions de CO2 provenant des tourbières dégradées. Or, le délai nécessaire à la restauration visant à rétablir la fonction de puits de C d'une tourbière non perturbée demeure mal défini en raison du manque de mesures pluriannuelles. J'analyse trois années de mesures des flux turbulents dans une tourbière restaurée après l'extraction dans l'est du Québec au Canada (restaurée 14 ans auparavant). La tourbière restaurée présentait un puits de C de 78 ± 17 g C m-2 an-1, en raison de la forte absorption de CO2, de la faible émission de CH4 et de l’exportation de carbone organique dissous dans l’eau. Une représentation des changements de structure de la canopée après l'extraction (à partir de 1980) a démontré une large comparabilité entre la tourbière restaurée et la tourbière intacte environnante après cinq ans de restauration. Les résultats de l'indice de végétation amélioré tendent à démontrer que le développement de la végétation en général a réagi normalement aux facteurs environnementaux et n'a subi aucune contrainte persistante provenant de la tourbe coupée sous-jacente. Alors que les processus derrière le flux net de CO2 semblent avoir été récupérés avec succès, environ les deux tiers de la tourbière restaurée constituaient une source minime de CH4, ce qui laisse présager un retard dans la récupération des processus de cyclage du C souterrain. Le renouvellement du C dans la tourbe, sous la nouvelle couche de sphaigne était faible et semblait se produire uniquement avec l’entrée du substrat d’E. vaginatum et le transport à médiation par les plantes. Le facteur de fractionnement isotopique du C pour le CH4 et le CO2 dans l’eau de porosité de champ restaurée a démontré une prédominance dans la production de méthane acétoclastique et même plus profonde dans le profil de tourbe coupée. Cependant, le fractionnement isotopique dans les anciens fossés de drainage a démontré un équilibre entre la méthanogénèse acétoclastique et hydrogénotrophe plus en profondeur dans le profil, indiquant qu'un certain renouvellement de C de la tourbe en masse se produisait. Au fil du temps (en décennies), on s'attend à ce que le renouvellement du C de la nouvelle tourbe limite les impacts de la tourbe coupée sur le flux de surface CH4. Les mesures de flux effectuées sur des sites non restaurés de l'est et de l'ouest du Canada révèlent que le fait de ne pas restaurer les tourbières après l’extraction entraîne des décennies d'ajout de CO2 dans l'atmosphère, avec de faibles émissions de CH4. La décision « après utilisation » de ne pas restaurer a pour résultat un forçage radiatif positif sept fois plus puissant que le forçage négatif obtenu par une restauration active après 500 ans. Une restauration active rapide permet d’avoir un impact neutre sur le climat environ 155 ans plus tôt que la restauration après une période de 20 ans. En revanche, les facteurs d’émission de niveau 1 du GIEC, fondés sur un large éventail d’activités de remouillage, provoquent un forçage radiatif positif continu, même avec un remouillage rapide","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/107907","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T22:38:34Z","registered":"2026-05-21T22:38:35Z","published":null,"updated":"2026-05-26T00:45:15Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/35934","type":"dois","attributes":{"doi":"10.82308/35934","identifiers":[{"identifier":"hyrax:ft848q86s","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/106804","identifierType":"uri"}],"creators":[{"name":"Lew, Marna R.","nameType":"Personal","givenName":"Marna R.","familyName":"Lew","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Building an educational community : the participation of international graduate students in civic engagement projects"}],"publisher":"McGill University","container":{},"publicationYear":2006,"subjects":[{"lang":"","subject":"Social integration -- Canada"},{"lang":"","subject":"Social Participation -- Canada"},{"lang":"","subject":"Students, Foreign -- Canada"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]}],"dates":[{"date":"2026-03-19","dateType":"Accepted"},{"date":"2006","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."},{"rights":"© Marna R. Lew, 2006"}],"descriptions":[{"lang":"","description":"This item was digitized as part of a project to share McGill's intellectual legacy with the public. If you are the copyright holder or a relative of the copyright holder who is deceased, you may request withdrawal by emailing escholarship.library@mcgill.ca. The full policy for eScholarship may be accessed here: https://www.mcgill.ca/libraries/research-services/escholarship/policy","descriptionType":"Other"},{"lang":"en","description":"In the next few years, the number of international students, including graduate students, in Canada is expected to increase considerably (Cudmore, 2005). Simultaneously, recent funding cuts to higher education in a more neoliberal policy climate leave these students with fewer services to facilitate their integration into the host community (Hellsten \u0026amp; Prescott, 2004; Trice, 2004). One important way in which students become integrated is by participating in civic engagement projects. This study examined how, in the current policy climate, international graduate students are taking part in such projects. Based on semi-structured interviews with six international graduate students in the field of education in Quebec, the study showed that students embraced a more Deweyan perspective of education and successfully participated in civic engagement projects despite many challenges, such as an academic culture that provides little active support for their involvement in civic engagement activities. The study concludes with recommendations so that universities can provide such support.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/106804","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-20T20:12:06Z","registered":"2026-05-20T20:12:07Z","published":null,"updated":"2026-05-26T00:44:37Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/51902","type":"dois","attributes":{"doi":"10.82308/51902","identifiers":[{"identifier":"hyrax:pv63g4184","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/118769","identifierType":"uri"}],"creators":[{"name":"Beaumier, Maude","nameType":"Personal","givenName":"Maude","familyName":"Beaumier","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Vulnerability of Inuit women's food system to climate change in the context of multiple socio-economic stresses - a case study of Arviat, Nunavut"}],"publisher":"McGill University","container":{},"publicationYear":2012,"subjects":[{"lang":"","subject":"Geography"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Ford, James (Internal/Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-20","dateType":"Accepted"},{"date":"2012","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Ford, James (Internal/Supervisor)","descriptionType":"Other"},{"lang":"en","description":"Nunavut has the highest incidence of food insecurity in Canada, where 56% of Inuit households are believed to experience difficulties in obtaining sufficient food. Food insecurity occurs when food systems are stressed such that adequate nutrition is not accessible, available, and/or of insufficient quality. Inuit food systems comprising traditional and store food components are affected by economic, social and cultural transformations, and ecological changes, most notably associated with climate change. Inuit women have been identified to be particularly vulnerable to food insecurity, a condition that can be exacerbated by climate change stresses on their food system. This research identifies and characterizes the key factors determining Inuit women's food system vulnerability and adaptability to climate change and human stressors, and the factors contributing to food insecurity. This research was conducted in collaboration with the community of Arviat, Nunavut, using a community-based participatory research approach. Arviat is experiencing a high level of food insecurity, particularly among women. Photovoice, semi-structured interviews with Inuit women (n=42) and key informants (n=8), focus groups with women (n=7), elders (n=3) and hunters (n=2), and participant observations were used to collect in-depth qualitative data. Findings show that Inuit's food system in Arviat is sensitive to climate-related risks and changes, but climate change was not identified as affecting women's food security. Human factors such as financial resources and budgeting skills, store food knowledge, decrease in the transmission of country food knowledge, decrease in traditional training, substance use and gambling and high cost of living, negatively impact Inuit women's food security. On the other hand, a strong sharing network, governmental financial support and local educational initiatives help strengthen the food system and improve food security.","descriptionType":"Abstract"},{"lang":"fr","description":"Le Nunavut connait la plus haute incidence d'insécurité alimentaire au Canada, où 56% des foyers ont de la difficulté à obtenir une quantité suffisante de nourriture. Ce pourcentage dépasse largement la moyenne canadienne. L'insécurité alimentaire se manifeste lorsque le système alimentaire est stressé, provoquant ainsi un accès et une disponibilité inadéquate à de la nourriture de qualité. Le système alimentaire des Inuit, qui se compose de nourriture traditionnelle et d'aliments importés, est affecté par des changements d'ordre économique, social, culturel, et environnemental notamment associé aux changements climatiques. Les femmes Inuit ont été identifiées comme étant particulièrement vulnérables à l'insécurité alimentaire, et donc plus sensibles aux changements climatiques. L'insécurité alimentaire, particulièrement lorsqu'elle est chronique, a des répercussions au niveau de la santé physique, mentale et sociale des femmes Inuit, et ainsi accroît leur susceptibilité aux infections et aux maladies chroniques. Cette recherche améliore la compréhension de la vulnérabilité et la capacité d'adaptation du système alimentaire des femmes Inuit au changement climatique, et ce dans le contexte de stresses socio-économiques. Ce travail identifie et caractérise les facteurs clés qui déterminent la sécurité ou l'insécurité alimentaire chez les femmes Inuit à l'aide d'une méthodologie basée sur l'étude de cas, qui s'inspire d'une approche de recherche participative communautaire (CBRP), et ce en collaboration avec la communauté d'Arviat, Nunavut. Le niveau d'insécurité alimentaire est élevé à Arviat, particulièrement chez les femmes. Diverses méthodes ont été utilisée afin d'obtenir des données qualitatives approfondies, telles que photovoice, entrevues semi-structurées avec des femmes Inuit (n=42) et des informateurs clefs (n=8), groupes de discussions avec des femmes (n=7), des personnes âgées (n=3) et des chasseurs (n=2), ainsi que l'observation participative. Les résultats démontrent que le système alimentaire des femmes Inuit est sensible aux risques et aux changements reliés au climat. Par contre, le changement climatique n'a pas été identifié comme un facteur affectant la sécurité alimentaire des femmes actuellement. Les facteurs humains tels que les ressources financières, la capacité à faire un budget, les connaissances au sujet de la nourriture d'épicerie, la diminution de la transmission des savoirs reliés à la nourriture traditionnelle, la réduction de l'éducation traditionnelle, la consommation de tabac et de drogues, les jeux de hasard et le coût de la vie élevé impactent négativement le système alimentaire des femmes Inuit. Malgré tout, un important réseau de partage et le support gouvernemental et local contribuent à renforcir le système alimentaire et la sécurité alimentaire. Les programmes communautaires à vocation éducative sont important afin d'assurer la sécurité alimentaire à long terme.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/118769","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T06:10:23Z","registered":"2026-05-21T06:10:24Z","published":null,"updated":"2026-05-26T00:44:06Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/46227","type":"dois","attributes":{"doi":"10.82308/46227","identifiers":[{"identifier":"hyrax:0k225f15t","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/84438","identifierType":"uri"}],"creators":[{"name":"Petrasek MacDonald, Joanna","nameType":"Personal","givenName":"Joanna","familyName":"Petrasek MacDonald","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"From the minds of youth: exploring Inuit youth resilience within a changing climate and applications for climate change adaptation in Nunatsiavut, Labrador, Canada"}],"publisher":"McGill University","container":{},"publicationYear":2015,"subjects":[{"lang":"","subject":"Geography"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Ford, James (Internal/Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-17","dateType":"Accepted"},{"date":"2015","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Ford, James (Internal/Supervisor)","descriptionType":"Other"},{"lang":"en","description":"The Canadian North is experiencing rapid social, cultural, economic, political, and environmental change that have direct impacts on the lives of Inuit living in this region, as well as serious implications for the future of the Inuit youth. Essential to facing this challenging context is a resilient youth population with the adaptive capacities and coping skills to respond to multiple stressors and pressures. This thesis considers the question of how to foster youth resilience and support youth protective factors that enhance youth well-being and can help young people deal with change, specifically climate change. To answer this question, a systematic literature review, a community-based, youth-led, cross-cultural participatory video project, and a regional community-based study were undertaken to explore youth-identified protective factors and examine challenges to these factors from youth perspectives and experiences. Specifically, this thesis characterizes the protective factors that influence Circumpolar Indigenous youth mental health resilience to climate change; explores participatory video as a process that can foster protective factors thereby demonstrating potential to be used in adaptation as a way to enhance youth resilience; documents youth-identified protective factors that support mental health and well-being amidst change (i.e. social, cultural, economic, or environmental); and examines how climatic changes and related environmental impacts challenge these factors throughout the region of Nunatsiavut from a youth perspective. The findings from this work highlight the importance of youth voices, perspectives, and involvement within research and practitioner communities, and contributes to the growing body of research on Circumpolar Indigenous youth resilience that can inform climate change adaptation efforts.","descriptionType":"Abstract"},{"lang":"fr","description":"Le Nord Canadien éprouve présentement de rapides changements sociaux, culturels, économiques, politiques et environnementaux qui ont des impacts directs sur la vie des Inuits dans cette région, en plus de sérieuses implications pour le futur de la jeunesse Inuit. Afin d'affronter ce contexte difficile, il est essentiel pour la jeunesse Inuit d'éprouver de la résilience envers leur capacité d'adaptation et de développer les aptitudes nécessaires pour lutter contre les multiples sources de stress et de pression. Cette thèse se questionne sur la façon de favoriser la résilience des jeunes ainsi que sur le soutient des facteurs qui améliorent la protection de la jeunesse et de leur bien-être en plus d'aider les jeunes Inuits à faire face au changement, plus particulièrement les changements climatiques. Afin de répondre à cette question, un examen systématique de la littérature, un projet de vidéo participatif interculturel, établi dans la communauté et mené par les jeunes, ainsi qu'une étude régionale établie dans la communauté ont été entrepris afin d'explorer les facteurs de protection identifiés par les jeunes et d'examiner les défis de ces éléments à partir de perspectives et d'expériences de ces jeunes. Plus spécifiquement, cette thèse caractérise les facteurs de protection qui influencent la résilience de la santé mentale des jeunes Indigènes du cercle polaire aux changements climatiques; elle explore la vidéo participative en tant que processus qui peut favoriser les facteurs de protection pour ainsi démontrer le potentiel d'adaptation comme un moyen d'améliorer la résilience juvénile; elle documente les facteurs de protection identifiés par les jeunes qui supportent la santé mentale et le bien-être au sein du changement (ex : social, culturel, économique ou environnemental); et elle examine comment les changements climatiques et les ses impacts environnementaux mettent au défi ces facteurs de protection partout dans la région de Nunatsiavut, vu dans la perspective des jeunes; ainsi que les résultats de cette étude qui mettent en évidence l'importance de la voix, de la perspective et de l'implication des jeunes au sein de cette recherche et des communautés participantes, en plus de contribuer au nombre croissant de recherches sur la résilience des jeunes Indigènes du cercle polaire qui peuvent influencer les efforts d'adaptation aux changements climatiques.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/84438","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T06:47:09Z","registered":"2026-05-21T06:47:10Z","published":null,"updated":"2026-05-26T00:43:17Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/32039","type":"dois","attributes":{"doi":"10.82308/32039","identifiers":[{"identifier":"hyrax:bn999c69k","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/101537","identifierType":"uri"}],"creators":[{"name":"Rowan, Gillian","nameType":"Personal","givenName":"Gillian","familyName":"Rowan","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"An examination of the potential and limitations of optical remote sensing in monitoring submerged aquatic vegetation"}],"publisher":"McGill University","container":{},"publicationYear":2022,"subjects":[{"lang":"","subject":"Geography"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Kalacska, Margaret (Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-18","dateType":"Accepted"},{"date":"2022","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Kalacska, Margaret (Supervisor)","descriptionType":"Other"},{"lang":"fr","description":"La végétation aquatique est une constituante essentielle des écosystèmes d'eau douce, fournissant un habitat pour la faune, stabilisant les sédiments, modifiant les régimes d'écoulement et améliorant la qualité d’eau. Les communautés végétales sont cependant sujets à de nouvelles pressions croissantes en raison du changement climatique et des perturbations humaines accrues. La surveillance et la gestion de ces écosystèmes sont donc essentielles pour le maintien des services rendus par les plantes aquatiques. La télédétection est suggérée comme méthode préférée pour surveiller ces habitats, mais la technologie n'a pas encore été mise en œuvre à grande échelle, en particulier pour la végétation aquatique submergée (VAS) dans le contexte de l'eau douce. L'objectif de cette thèse est de faciliter l'application des techniques de télédétection à la surveillance des VAS en transferant les informations de façon amenable aux non-specialistes et en addressant les lacunes dans les connaisances scientifiques actuelles. Une revue systématique de la littérature a été menée sur les travaux de surveillance des VAS à l'aide de la télédétection, ce qui a été synthétisée avec les principes généraux de la télédétection, afin de créer une ressource pour les gestionnaires d'écosystèmes et les chercheurs en écologie peu familiers avec la discipline. Cette resource touche sur tous les aspects d'un méthodologie de télédétection optique typique, avec une attention particulière sur la surveillance de la VAS, pour indiquer aux non-spécialistes si, et comment, adopter la télédétection dans leurs recherches. La majorité des travaux antérieurs se sont concentrés sur les systèmes côtiers marins et principalement sur la détermination de l'étendue des communautés végétales. Bien que ces applications aient produit des résultats de precision de modérés à bons, la portée étroite des données empêche de répondre à de nombreuses questions critiques de gestion des écosystèmes. Pour cette raison, des recherches originales ont été entreprises pour mettre en œuvre des techniques de télédétection optique sur un plus grand nombre de cibles dans un environnement non ideal, c'est-à-dire en eau douce. Ce travail a évalué la séparabilité spectrale des vegetaux sous conditions de laboratoire à divers niveaux de regroupement. L'imagerie in situ a été analysée pour comparer la précision modélisée attendue à ce qui est possible dans des conditions de terrain. Des échantillons de treize espèces de VAS ont été collectés sur deux saisons et se sont avérés etre spectralement séparables (critère de voisin-le-plus-proche de 0,8 à 1, selon le groupe) pendant l’apogee de la saison de croissance. La séparabilité spectrale dépendait directement de la résolution spectrale et du nombre de bandes du capteur choisi. L'imagerie hyperspectrale a été efficace, avec un rappel de classe individuelle allant jusqu'à 100 % et des rappels globaux de 88 % et 94 % lors de la détection des types de végétation et entre la végétation ou la non-végétation, respectivement. L'analyse des images était limitée aux cibles de végétation formant des canopées ou en tapis et aux grandes parcelles sans végétation en raison de la résolution spatiale d'environ 1 m. Les cibles présentes dans cet écosystème d'eau douce seraient propices à la cartographie et à la surveillance à l'aide de techniques de télédétection, cependant, l'imagerie de la résolution spatiale et spectrale requise pour de telles applications est coûteuse et peu disponible. Le développement de capteurs ciblés et à résolution spatiale suffisamment élevée à bord de plates-formes spatiales devrait donc être une priorité si l'on veut surveiller efficacement la végétation aquatique aux échelles régionales et mondiale","descriptionType":"Abstract"},{"lang":"en","description":"Aquatic vegetation is a critical component of freshwater ecosystems, providing habitat for small fish and invertebrates, stabilizing sediments, altering flow regimes, and improving water quality. Vegetation communities are, however, facing new and escalating pressures due to climate change and increased human disturbances. Monitoring and managing these ecosystems are therefore vital if the services aquatic plants afford are to be maintained. Remote sensing has been suggested as a preferred method to monitor these habitats, but the technology hasn’t yet seen extensive implementation particularly to submerged aquatic vegetation (SAV) in the freshwater context. The goal of this thesis is to facilitate the application of remote sensing techniques to SAV monitoring through both information transfer and filling in foundational knowledge gaps in the field. A systematic literature review was conducted of previous work in SAV monitoring using remote sensing, which was synthesized with relevant general principles of remote sensing, to create a resource for ecosystem managers and ecological researchers unfamiliar with the discipline. This resource provides an overview of all aspects of a typical optical remote sensing workflow, concentrating on applications to SAV monitoring, to instruct non-specialists in whether and how to adopt remote sensing as a research method. The majority of previous work focused on coastal systems and primarily on determining community extent. While these applications did produce moderate to good results, the narrow scope of the data precludes many critical ecosystem management and research questions from being answered. For this reason, original research was undertaken to implement optical remote sensing techniques to a larger range of targets in a non-ideal (i.e., freshwater) environment. This work assessed the spectral separability of targets under laboratory conditions at various grouping levels (i.e., species to kingdom, vegetation/non-vegetation), under multiple sampling conditions, and modelled across spectral resolutions. In situ imagery was additionally analyzed to compare the expected modelled accuracy to what is possible under field conditions. Samples from thirteen species of SAV were collected across two seasons and were found to be spectrally separable (leave-one-out nearest neighbour criterion of 0.8 to 1 depending on grouping) during the peak of the growing season. Spectral separability depended directly on the spectral resolution and number of bands of the sensor chosen. Airborne hyperspectral imagery was effective with individual class recall of up to 100%, and overall recalls of 88% and 94% when detecting vegetation types and between vegetation or non-vegetation, respectively. Image analysis was limited to targets of canopy-forming or carpeting vegetation and large unvegetated patches due to the ~ 1 m spatial resolution. The targets present in this freshwater ecosystem would be conducive to mapping and monitoring using remote sensing techniques, however, imagery of the spatial and spectral resolution required for such applications is expensive and not widely available. Development of targeted and sufficiently high-spatial resolution sensors aboard space-borne platforms should therefore be prioritized if aquatic vegetation is to be effectively monitored at the regional to global scales","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/101537","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-20T17:43:02Z","registered":"2026-05-20T17:43:03Z","published":null,"updated":"2026-05-26T00:43:14Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/37535","type":"dois","attributes":{"doi":"10.82308/37535","identifiers":[{"identifier":"hyrax:nk322j266","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/116752","identifierType":"uri"}],"creators":[{"name":"Haywood, Caroline","nameType":"Personal","givenName":"Caroline","familyName":"Haywood","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Filling the gap: the role of sub-national government networks in a multi-level global climate change regime"}],"publisher":"McGill University","container":{},"publicationYear":2013,"subjects":[{"lang":"","subject":"Law"},{"subject":"FOS: Law","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Ellis, Jaye Dana (Internal/Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-20","dateType":"Accepted"},{"date":"2013","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Ellis, Jaye Dana (Internal/Supervisor)","descriptionType":"Other"},{"lang":"en","description":"This thesis questions the contemporary perception of climate change governance as a purely international responsibility, to be primarily addressed by multilateral negotiations of nation states. An engagement with the geographic theory of scale demonstrates sub-national governments' (SNG) role in the governance of local causes and effects of climate change. SNG networks are an emerging actor in climate change governance, as SNGs have grouped together to tackle climate change collectively. This thesis considers the value of these SNG networks in influencing the laws and policies of their members, as well as the international regime. More broadly, the membership of SNG networks suggests that the role of these networks in a multilevel governance regime is to \"fill the gap\" of support for regional and city governments that are undertaking more ambitious climate change action than the national governments in which they reside.","descriptionType":"Abstract"},{"lang":"fr","description":"Ce mémoire questionne la perception contemporaine de la primauté des négociations multilatérales, qui ont pour but de lutter contre le changement climatique. La théorie géographique de l'échelle illustre que les villes, les provinces et les régions – les gouvernements sous nationaux – jouent également un rôle dans la gestion des causes et des effets locaux du changement climatique. Les réseaux, créés par les gouvernements sous nationaux, sont en train de devenir des acteurs majeurs dans la gouvernance du changement climatique en raison du regroupement de ces gouvernements afin de traiter de la question collectivement. Ce mémoire étudie l'importance de ces réseaux; en particulier, leurs influences sur les lois et la politique des gouvernements sous-nationaux, ainsi que sur le régime international de l'Organisation des Nations Unis. De plus, l'adhésion des réseaux suggère que le rôle de ces réseaux au sein d'un régime à plusieurs niveaux est de mettre fin aux lacunes qui existent dans le soutien des gouvernements régionaux et des municipalités, qui ont entrepris des projets pour la lutte contre le changement climatique plus ambitieux que les gouvernements nationaux dans lesquels ils se situent.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/116752","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T05:14:51Z","registered":"2026-05-21T05:14:52Z","published":null,"updated":"2026-05-26T00:42:40Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/54170","type":"dois","attributes":{"doi":"10.82308/54170","identifiers":[{"identifier":"hyrax:kp78gk010","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/113732","identifierType":"uri"}],"creators":[{"name":"Sinha, Nawal K. P.","nameType":"Personal","givenName":"Nawal K. P.","familyName":"Sinha","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Geomorphic Evolution of Northern Rupununi British Guiana"}],"publisher":"McGill University","container":{},"publicationYear":1967,"subjects":[{"lang":"","subject":"Geography"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Bird, J. B. (Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-19","dateType":"Accepted"},{"date":"1967","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Bird, J. B. (Supervisor)","descriptionType":"Other"},{"lang":"en","description":"The geomorphic evolution of the northern Rupununi, Guyana, is described and explained. The region, located on the Amazon-Essequibo divide, forms a tectonic depression in the heart of the Guiana Shield; it is characterised by a distinctive geologic individuality and by a unique drainage history. The major physical aspects, including geology, tectonics, climate, geomorphic processes, drainage and relief conditions, are analysed in detail and expressed cartographically wherever possible. The surficial deposits of the region are identified, mapped and their origin and morphology is described and explained. Particular attention is given to the laterites of the region and to the evolution of landform in laterites. It is postulated that dissection of the laterite plateau and lowering of local base level in early- and middle- Pleistocene led to a change in vegetation from former forest to the present savanna. Significance of terrace and dune sands, cobbles and boulders of various rocks, climatic and vegetation change s of the Pleistocene, together with erosion surfaces, are evaluated prior to a summary presentation of the evolution of the northern Rupununi landscape. [* Now Guyana]","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/113732","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T20:54:06Z","registered":"2026-05-21T20:54:07Z","published":null,"updated":"2026-05-26T00:41:16Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/5465","type":"dois","attributes":{"doi":"10.82308/5465","identifiers":[{"identifier":"hyrax:vh53ww71n","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/126723","identifierType":"uri"}],"creators":[{"name":"Pogson, Lynn","nameType":"Personal","givenName":"Lynn","familyName":"Pogson","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Modeling ice algae in the Canadian Artic Archipelago"}],"publisher":"McGill University","container":{},"publicationYear":2009,"subjects":[{"lang":"","subject":"Physical Oceanography"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Tremblay, Bruno (Internal/Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-20","dateType":"Accepted"},{"date":"2009","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Tremblay, Bruno (Internal/Supervisor)","descriptionType":"Other"},{"lang":"en","description":"Ice algae are an important component of the carbon cycle in the Arctic, and can therefore have an impact on climate. I investigate the dynamics of an ice algae bloom by coupling an algae-nutrient model [Lavoie et al., 2005] with a thermodynamic sea ice model [Huwald et al., 2005]. The sea ice component is a more sophisticated model than what has been used in past Arctic ice algae model studies. To validate the model, I simulate an algal bloom at the base of the ice over a season and compare with data from the Resolute area in the Canadian Arctic Archipelago. Results suggest that bloom dynamics are strongly related to the ice growth/melt rate, with ice melt being the trigger for bloom decline. Being able to accurately model physical conditions is essential before ice algae can be accurately modeled, and some recommendations for improvement are discussed.","descriptionType":"Abstract"},{"lang":"fr","description":"Les algues de glace sont une composante importante du cycle du carbone dans l'Arctique et peuvent avoir une influence sur le climat. J'explore la dynamique d'une efflorescence algale par le couplage d'un modèle d'algues /nutriments [Lavoie et al., 2005] avec un modèle de la thermodynamique de la glace de mer [Huwald et al., 2005]. Le modèle de glace est plus sophistiqué que les modèles utilisés dans les études précédentes sur les algues de glace Arctiques. Pour valider le modèle, je simule une efflorescence algale à la base de la glace pendant une saison et on compare avec des données de la région de Resolute dans l'Archipel Canadien Arctique. Les résultats indiquent que la dynamique de l'efflorescence est fortement liée au taux de croissance et de fonte, la fonte étant le déclencheur du déclin de l'efflorescence. La capacité de modéliser avec précision les conditions physiques est essentiel pour simuler correctement les algues de glaces, et quelques améliorations sont suggérées.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/126723","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T06:53:02Z","registered":"2026-05-21T06:53:03Z","published":null,"updated":"2026-05-26T00:40:59Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/20568","type":"dois","attributes":{"doi":"10.82308/20568","identifiers":[{"identifier":"hyrax:c821gq96v","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/102552","identifierType":"uri"}],"creators":[{"name":"Gauthier, Madeleine","nameType":"Personal","givenName":"Madeleine","familyName":"Gauthier","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"The resilience of Canadian small- and medium-sized environmental enterprises during COVID-19"}],"publisher":"McGill University","container":{},"publicationYear":2022,"subjects":[{"lang":"","subject":"Biology"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Basile, Suzy (Supervisor2)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]},{"name":"Potvin, Catherine (Supervisor1)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-18","dateType":"Accepted"},{"date":"2022","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Basile, Suzy (Supervisor2)","descriptionType":"Other"},{"lang":"","description":"Potvin, Catherine (Supervisor1)","descriptionType":"Other"},{"lang":"fr","description":"Cette recherche examine la réponse des petites et moyennes entreprises environnementales (PMEE) canadiennes pendant la pandémie de la COVID-19. L'objectif est de comprendre si les PMEE ont maintenu leur approche environnementale pendant la crise de la COVID-19. Avec l’essor du développement durable dans le cadre duquel les entreprises sont invitées à agir en environnement, il est essentiel de comprendre comment les PMEE réagissent aux chocs dans le système socio-économique. Les données du projet PIVOT - un projet de recherche-action visant à comprendre quels types de discours motivent efficacement l'action climatique au sein des PME - ont été utilisées pour effectuer une analyse « avant-et-pendant ». Dix-sept entrevues semi-structurées avec des chefs de PMEE de partout au Canada ont servi de point de référence avant la COVID-19. Puis, 17 entrevues de suivi réalisées jusqu'à quelques mois après le début de la pandémie ont servi de point de données pendant la pandémie. Pour valider les résultats préliminaires, 2 activités de groupe de discussion avec les participants initiaux et de nouveaux participants ont été complétées en avril 2020. Des opportunités de réponses durables en temps de crise ont été identifiées aux niveaux macro, méso et micro de la société. Les PMEE participantes ont plaidé en faveur de changements systémiques durables et ont répondu aux nouveaux besoins sociétaux tout en maintenant leurs pratiques environnementales. Les PMEE ont également utilisé l’intensification de la vague d'achat local pendant la pandémie pour éduquer leurs clients à propos du développement durable. Les résultats de cette étude suggèrent que les PMEE sont résilientes et maintiennent leurs pratiques environnementales même en temps de crise, ce qui remet en question l'idée que les petites entreprises en mode survie se concentrent uniquement sur leurs performances économiques","descriptionType":"Abstract"},{"lang":"en","description":"This research examines the response of Canadian small- and medium-sized environmental enterprises (SMEEs) during the COVID-19 pandemic. The aim is to understand whether SMEEs continued their environmental work during the time of the COVID-19 crisis. In a world where sustainable development is increasingly important, and businesses are asked to act in environment, it is critical to understand how environmental businesses react to shocks into the socio-economic system. Data from the PIVOT project – an action-research project aiming to understand what kinds of narratives best motivate climate action within SMEs – was used to conduct a before-and-during analysis. Seventeen in-depth semi-structured interviews with SMEE leaders from across Canada were used as the baseline before COVID-19 and 17 shorter follow-up interviews, up to a few months into the pandemic, served as a data point during the pandemic. As a third data point, to validate preliminary results, 2 focus group activities with initial and new participants were conducted in April of 2020. Opportunities for sustainable responses in times of crisis were identified at the macro, meso and micro levels of society. Participant SMEEs advocated for sustainable systemic change and answered new societal needs all the while maintaining their environmental practices. SMEEs also used the buy local momentum that was amplified during the pandemic to educate their customers on sustainability related themes. The results of this study suggest that SMEEs are resilient and maintain their environmental practices even in times of crisis, which challenges the idea that small businesses in survival mode only focus on their economic bottom line","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/102552","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-22T06:00:11Z","registered":"2026-05-22T06:00:12Z","published":null,"updated":"2026-05-26T00:40:53Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/845","type":"dois","attributes":{"doi":"10.82308/845","identifiers":[{"identifier":"hyrax:m900nv16k","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/114656","identifierType":"uri"}],"creators":[{"name":"Turner, Jennifer, 1979-","nameType":"Personal","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Investigating the effects of climate change and sea level rise on the coastal processes of the Beaufort Sea, Yukon Territory"}],"publisher":"McGill University","container":{},"publicationYear":2004,"subjects":[{"lang":"","subject":"Beaufort Sea Coast (Yukon)"},{"lang":"","subject":"Sea level -- Beaufort Sea"},{"lang":"","subject":"Climatic changes -- Yukon -- Herschel Island"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]}],"dates":[{"date":"2026-03-19","dateType":"Accepted"},{"date":"2004","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"This item was digitized as part of a project to share McGill's intellectual legacy with the public. If you are the copyright holder or a relative of the copyright holder who is deceased, you may request withdrawal by emailing escholarship.library@mcgill.ca. The full policy for eScholarship may be accessed here: https://www.mcgill.ca/libraries/research-services/escholarship/policy","descriptionType":"Other"},{"lang":"en","description":"High latitude areas have been identified in most GCMs as regions where global warming will appear earliest and be the greatest. Since much of Canada's north is underlain by permafrost, a warming of 3-5°C could cause widespread erosion and thermokarst. The Arctic coastal zone is particularly vulnerable, as it lies at the interface between terrestrial systems dominated by permafrost, and marine systems dominated by sea ice and wave action. This study aims at understanding some mechanisms of arctic coastal erosion, such as thermoerosional niches and block failure. The final goal of this research is to identify the areas of Herschel Island, Yukon Territory, which are likely to experience the greatest magnitude of change in the near future. This information is then coupled with a climate change scenario in order to predict future coastal erosion in the area.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/114656","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T22:45:22Z","registered":"2026-05-21T22:45:23Z","published":null,"updated":"2026-05-26T00:40:40Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/29022","type":"dois","attributes":{"doi":"10.82308/29022","identifiers":[{"identifier":"hyrax:9p290g86m","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/99884","identifierType":"uri"}],"creators":[{"name":"Lirette, Antoine-Olivier","nameType":"Personal","givenName":"Antoine-Olivier","familyName":"Lirette","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Isolating Novel Hydrocarbon Degraders from Northwest Passage Beach Sediments and Assessing their Ability for Biodegradation"}],"publisher":"McGill University","container":{},"publicationYear":2023,"subjects":[{"lang":"","subject":"Natural Resource Sciences"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Whyte, Lyle (Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-18","dateType":"Accepted"},{"date":"2023","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Whyte, Lyle (Supervisor)","descriptionType":"Other"},{"lang":"fr","description":"Dû aux conséquences du réchauffement climatique, la calotte glacière arctique recède de plus en plus loin, pour de plus en plus longues périodes de temps chaque année, ouvrant du même coup la voie aux activités anthropogéniques. Le Passage du Nord-Ouest est d’intérêt particulier dû au fait que l’on s’attend à le voir devenir un important réseau de navigation commerciale naval connectant les océans Atlantique et Pacifique entre les îles et golfs de l’arctique Canadien d’ici la fin de la décennie. Avec une augmentation de l’activité navale vient une augmentation du risque d’incidents pouvant mener au déversement accidentel de carburant à navire. Les Hydrocarbures, et plus spécifiquement leurs composantes aromatiques, sont particulièrement inquiétants pour leur impact néfaste sur l’environnement et la santé humaine dû à leurs propriétés toxiques et carcinogènes bien connues. De plus, une fois qu’ils se sont échappés de la colonne d’eau, ils sont particulièrement complexes à nettoyer des plages où ils se sont échoués due aux conditions climatiques de l’arctique, et la composition des plages du Passage du Nord-Ouest. Une méthode efficace utilisée pour se débarrasser de ces hydrocarbures échoués est la bioremédiation, ou l’utilisation de bactéries naturellement présentes dans l’environnement, pour dégrader le carburant. Dans cette étude, nous avons isolé des souches de bactérienne depuis des sédiments obtenus sur une plage du Passage du Nord-Ouest et avons déterminé leur potentiel de dégradation d’hydrocarbures sur de multiples hydrocarbures avec des méthodes génétiques et chimiques. En outre, la capacité de croissance des isolats bactériens sous de multiples conditions de température et de salinité répliquant des conditions connues de l’arctique fut testée, en plus de rechercher leurs génomes pour la présence de gènes connus pour leurs rôles dans la tolérance à la température et la présence élevée de sel. Les voies de dégradation d`hydrocarbures variés furent recréées en utilisant la banque de données KEGG (Kanehisa et al. 2021) pour 3 souches bactériennes identifiées comme étantVIIIparticulièrement prometteuse grâce à l’étendue de leur capacité de prolifération en culture n’utilisant que le mazout à très faible teneur en soufre comme source de carbone sous basse températures, leur potentielle nouveauté basée sur leur séquence 16S, ou si l’espèce n’est pas connue pour pouvoir dégrader les hydrocarbures. L’étendu de la dégradation des fractions d’alkanes et d’hydrocarbures aromatiques de ces souches fût ensuite déterminée par Chromatographie Gazeuse couplée Spectromètre de Masse (GC-MS) Nos résultats démontrent une présence répandue de gênes marqueurs pour la dégradation des hydrocarbures dans de nombreux isolats obtenus depuis des sédiments de plages du Passage du Nord-Ouest, et permirent de reconstruire des voies de dégradation complète dans de nombreux isolats provenant de ces sédiments. De plus, les expériences de croissance et génétique performées suggèrent une habileté répandue des souches bactérienne isolées pour la croissance dans un environnement très froid et à salinité élevée, confirmant leur identité psychrophile et suggérant une habileté pour la dégradation des hydrocarbures dans ces conditions extrêmes de l’arctique. Au niveau des souches individuelles, Rhodococcus sp.R1B_2T and Pseudarthrobacter sp.R2D_1T ont le potentiel pour être utilisées en bioremédiation, et plusieurs autre microbes naturellement présent pourraient aussi offrir une réponse si un déversement d’hydrocarbures devait atteindre les sédiments d’une plage du Passage du Nord-Ouest","descriptionType":"Abstract"},{"lang":"en","description":"Due to the effect of global climate change, sea ice cover in the Arctic recedes further and for longer periods of time every year, opening the way to increased anthropogenic activity. The Northwest Passage is of special interest as it is expected to become an important sea route connecting the Pacific and Atlantic oceans through the islands and gulfs of northern Canada in the near future. With an increase in ship transit comes an increased risk of accidental spillage of ship fuels. Hydrocarbons, and especially their aromatic compounds, are of environmental concern due to their well-known toxic and carcinogenic properties. Once they leave the water column, these fuels are known to be particularly difficult to remove from Arctic beaches where they wash off due to their high viscosity, and the composition of Arctic beach sediments. One efficient method used to clean beaches of washed-up hydrocarbons is bioremediation, or the use of naturally occurring bacteria to degrade oil. In this study we isolated microbial strains from Northwest Passage beach sediments and determined their potential for degradation of various hydrocarbons through genetic and chemical methods. Moreover, the isolates’ ability to grow under a wide range of temperatures and salinities common to the Arctic was assessed. By searching their genomes for the presence of cold and salt tolerance genes, hydrocarbon degradative pathways were recreated using KEGG database (Kanehisa et al. 2021) in 3 strains selected for their successful growth on Ultra Low Sulfur Fuel Oil (ULSFO) as sole carbon source under low temperature, their potential novelty based on 16S rRNA amplicon sequencing, or their unknown potential for hydrocarbon biodegradation. The extent of degradation of alkane and aromatics fractions of these strains was then assessed using Gas-Chromatography and Mass-Spectrometry. Our results show the widespread presence of marker hydrocarbon degradation genes in several microbial isolates from Northwest Passage beach sediments, and successfully mapped complete degradation pathways for alkanes and naphthaleneVIin several of those. Furthermore, the growth and genetic assays performed suggest a wide range of temperature and salt tolerance in the isolated strains, confirming their identity as psychrophiles and suggesting an ability for bioremediation under cold and highly saline environments. At the individual strain level, our results suggest that both Rhodococcus sp.R1B_2T and Pseudarthrobacter sp.R2D_1T have potential in bioremediation in the events of an oil spill reaching the shores of the Northwest Passage, and that many more naturally occurring microbes could offer a potential response if such a spill was to reach the sediments of Northwest Passage beaches","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/99884","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T12:22:56Z","registered":"2026-05-21T12:22:57Z","published":null,"updated":"2026-05-26T00:39:37Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/44744","type":"dois","attributes":{"doi":"10.82308/44744","identifiers":[{"identifier":"hyrax:8w32r7792","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/98486","identifierType":"uri"}],"creators":[{"name":"Frosi, Marcelo","nameType":"Personal","givenName":"Marcelo","familyName":"Frosi","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Street tree pits as bioretention units: analysis of their performance in a residential area of Montreal, Canada"}],"publisher":"McGill University","container":{},"publicationYear":2019,"subjects":[{"lang":"","subject":"Bioresource Engineering"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Clark, Grant (Internal/Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-18","dateType":"Accepted"},{"date":"2019","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Clark, Grant (Internal/Supervisor)","descriptionType":"Other"},{"lang":"en","description":"Urbanization, increased surface impermeability, and climate change have resulted in changes in the quantity, intensity and quality of urban stormwater runoff. Urban stormwater runoff has ecological impacts. Generally, these impacts are related to the total and peak flow volumes, and the presence of contaminants in runoff. Low impact development (LID) techniques are emerging as alternatives to traditional stormwater management systems to mitigate these impacts. One such technique is to combine soil, plants and infrastructure in a bioretention unit. This technique involves the use of multiple smaller units spread across an area; street tree pits may be suitable as bioretention units.The objective of this research was to analyze different designs of newly developed tree pits as bioretention units in the city of Montreal. These tree pits soil comprise the soil of the open part, where trees are planted, and the soil underneath the sidewalk. The two design factors were soil organic matter (SOM) content, and the permeability of the surrounding area (sidewalks and front lawns). A total of 24 tree pits were used in this study. The concentrations of trace metals and sodium were analyzed in soil solution and soil matrix. Using the estimated water flux mass flux of each contaminants was calculated. The mean contaminant concentration increased from the surface to the deep sampling depths (e.g. 46% for Ni, and 18% for Cu) but taking into account the accompanying decrease in water volumes, mass flux of contaminants decreased with the increase in depth (e.g. 72% for Ni, and 81% for Cu). In addition, tree pits with higher SOM content presented a higher reduction of mass flux of contaminants than tree pits with lower SOM content between surface and deep sampling depths. For example, tree pits with higher SOM content reduced the mass flux of Cr and Cu by 65%, and 86%, respectively, while tree pits with lower SOM content reduced the mass flux of Cr and Cu by 39% and 73% respectively.Tree pits with higher SOM content presented higher concentrations of Cr, Cu and Pb in the soil matrix. For instance, in the soil matrix of tree pits with higher SOM, Cr and Cu concentrations were 19.9 mg kg-1 and 15.3 mg kg-1, respectively, but were 17.4 mg kg-1 and 13.5 mg kg-1, respectively, in tree pits with lower SOM. This corroborates the observed effect on mass flux of Cr and Cu. In addition, an overall increase of contaminants was observed over time. For example, the concentration in soil of Cr increased from 15.9 mg kg-1 to 20.0 mg kg-1 and of Ni from 11.9 mg kg-1 to 14.4 mg kg-1 representing increases of 26% and 21% after about 18 months of monitoring. The soil matrix contained approximately one third of the maximum permitted concentration of contaminants stipulated by the Canadian Council of Ministers of the Environment for Cr and Ni in residential and park areas. High local permeability and high SOM bioretention units are recommended to mitigate the adverse effects of urbanization on runoff quality and quantity. In this study, tree pits with higher SOM retained contaminants better for all contaminants analyzed (except Pb). The increase in permeability of surrounding surfaces decreased the observed flux of water as well as the mass flux of contaminants observed in the open part of the tree pit. The reduced flux of water in the open part of the tree pit was likely a result of increased infiltration into the soil of the lawn and through the permeable sidewalk. The soil underneath the sidewalk is the same as, and contiguous with, the open area of the tree pit so it is designed to retain runoff contaminants. In this study, higher local permeability and higher SOM were both generally correlated with lower mass flux of contaminants and water. Tree pits can be used as bioretention units having their performance improved by increasing SOM and local permeability.","descriptionType":"Abstract"},{"lang":"fr","description":"L'urbanisation, l'augmentation de l'imperméabilité des surfaces et les changements climatiques ont entraîné des changements dans la quantité, l'intensité et la qualité des écoulements des eaux pluviales. Les techniques de développement à faible impact (DFI) émergent comme étant des alternatives possibles aux systèmes traditionnels de gestion des écoulements des eaux pluviales pour atténuer ces impacts. L'une de ces techniques est un système de biorétention dans lequel le sol, les plantes et les infrastructures sont combinés dans une unité de filtration. Cette technique implique l'utilisation de plusieurs petites unités réparties sur une zone donnée; les fosses d'arbres peuvent convenir à une unité de biorétention. L'objectif de cette recherche était d'analyser différentes configurations de fosses d'arbre en tant qu'unités de biorétention dans la ville de Montréal. Les deux facteurs de configuration étaient la teneur en matière organique du sol (M.O.) et la perméabilité de la zone (trottoirs et pelouses) sur la performance des unités de biorétention. Au total, 24 fosses d'arbres ont été utilisées dans cette étude. La concentration de métaux lourds et sodium a été analysée dans la solution et la matrice de sol. Le flux d'eau a été estimé et utilisé pour estimer le flux de masse des contaminants. La concentration moyenne en contaminants augmentait de la surface aux profondeurs d'échantillonnage (e.g. 46% pour Ni et 18% pour Cu), mais le flux massique de contaminants diminuait avec l'augmentation de la profondeur (e.g. 72% pour Ni, et 81% pour Cu). En outre, des fosses d'arbres avec une teneur en M.O. supérieure présentait une réduction plus importante du flux de masse de contaminants que les fosses arborées avec une teneur en M.O. inférieure entre les profondeurs d'échantillonnage de surface et profondes. Par exemple, des fosses d'arbres avec une teneur en M.O. supérieure a réduit le flux de masse de Na et Ni dans 87% et 80%, respectivement, tandis que les fosses d'arbres avec une teneur en M.O. inférieure réduit le flux de masse de Na et Ni dans 66% et 62% respectivement.Les fosses d'arbres avec une teneur en M.O. supérieure présentaient des concentrations plus élevées de Cr, Cu et Pb dans la matrice du sol. Par exemple, dans la matrice de sol des fosses d'arbres avec une teneur en M.O. supérieure les concentrations de Cr et de Cu étaient respectivement de 19,9 mg kg-1 et 15,3 mg kg-1, tandis que dans des fosses d'arbres avec une plus faible teneur en O.M les concentrations étaient 17,4 mg kg-1 et 13,5 mg kg-1, respectivement. Ceci corrobore avec l'effet observé sur le flux de masse de Cr et de Cu. De plus, une augmentation générale des contaminants au fil du temps a été observée. Par exemple, la concentration dans le sol de Cr a augmenté de 15,9 mg kg-1 à 20,0 mg kg-1 et la concentration de Ni de 11,9 mg kg-1 à 14,4 mg kg-1, soit 26% et 21% d'augmentation après environ 18 mois de suivi, respectivement.L'augmentation de la perméabilité locale et de le M.O dans les unités de biorétention sont recommandées pour atténuer les effets néfastes de l'urbanisation sur la qualité et la quantité des eaux de ruissellement. Dans cette étude, les fosses d'arbres avec une plus grande teneur en M.O. ont montré une meilleure performance dans la rétention des contaminants (sauf Pb). L'augmentation de la perméabilité des surfaces environnantes a diminué le flux de masse des contaminants prélevés dans la partie ouverte de la fosse. Le sol sous le trottoir fait partie de la fosse d'arbre et est conçu pour retenir les contaminants des eaux de ruissellement. Dans cette étude, l'augmentation de la perméabilité locale et l'augmentation de le M.O. dans le sol étaient corrèle avec une réduction générale du flux massique de contaminants et d'eau à travers la partie ouverte de la fosse d'arbre.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/98486","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T13:20:12Z","registered":"2026-05-21T13:20:13Z","published":null,"updated":"2026-05-26T00:38:43Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/19395","type":"dois","attributes":{"doi":"10.82308/19395","identifiers":[{"identifier":"hyrax:5m60qz284","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/92678","identifierType":"uri"}],"creators":[{"name":"Sakthivel, Priyadharshini","nameType":"Personal","givenName":"Priyadharshini","familyName":"Sakthivel","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Explicating the Urban Heat Island phenomenon using in-situ sensors"}],"publisher":"McGill University","container":{},"publicationYear":2024,"subjects":[{"lang":"","subject":"Geography"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Sengupta, Raja (Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-18","dateType":"Accepted"},{"date":"2024","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Sengupta, Raja (Supervisor)","descriptionType":"Other"},{"lang":"fr","description":"Le changement climatique, défini comme les changements à long terme de la température mondiale et des régimes climatiques principalement dus aux activités anthropiques, affecte les écosystèmes, la biodiversité et la santé humaine. En conséquence, les populations urbaines sont particulièrement exposées aux maladies liées à la chaleur, exacerbées par l'effet d'îlot de chaleur urbain (UHI). La plupart des études sur l'UHI ont utilisé des données de température télédétectées en raison de leur disponibilité et de leur accessibilité, mais elles ne détectent que les différences de température de surface et il a été démontré qu'elles donnent une image des zones urbaines plus chaudes qu'elles ne le sont en réalité. En revanche, les capteurs in situ peuvent mesurer la température de l'air ambiant, qui influe sur le confort thermique et est directement liée à la mortalité cardiovasculaire. Actuellement, l'UHI ne peut être mesurée avec précision qu'à l'aide de stations météorologiques conventionnelles in situ, telles que celles exploitées par Environnement et Changement climatique Canada (ECCC). Cependant, de nouvelles approches basées sur la participation de la population et l'information géographique volontaire (VGI), telles que l'utilisation de capteurs à faible coût, combinées à des technologies géographiques, ont le potentiel d'ouvrir une nouvelle ère d'études climatiques à micro-échelle.Cette thèse vise à évaluer l'efficacité des capteurs in-situ dans la capture et l'estimation de l'intensité de l'UHI au Canada. Grâce à un examen approfondi de la littérature, les avantages des sources de données de température in-situ conventionnelles ou issues du crowdsourcing par rapport à d'autres sources sont identifiés. En outre, les défis liés à l'utilisation des données provenant de capteurs in situ pour les études sur les UHI sont également analysés. L'analyse souligne l'importance de la représentativité spatiale des capteurs in-situ, qu'ils soient conventionnels ou crowdsourcés, en raison de son influence sur l'estimation de l'intensité de l'UHI. Dans l'ensemble, cette thèse élargit la compréhension actuelle de l'utilisation des capteurs in-situ pour étudier la dynamique des UHI, ce qui profite aux initiatives d'élaboration de politiques et de planification urbaine qui visent à atténuer les impacts négatifs des UHI et à améliorer la résilience des villes face au changement climatique","descriptionType":"Abstract"},{"lang":"en","description":"Climate change, defined as long-term changes in global temperature and weather patterns primarily due to anthropogenic activities, affects ecosystems, biodiversity, and human health. As a result, urban populations are particularly at risk of heat-related illnesses, exacerbated by the Urban Heat Island (UHI) effect. Most UHI studies have utilized remotely sensed temperature data due to their easy availability and accessibility, but they only detect surface temperature differences and have been shown to portray urban areas as warmer than they actually are. In contrast, in-situ sensors can measure ambient air temperature, which impacts thermal comfort and is directly related to cardiovascular mortality. Currently, UHI can only be accurately measured using conventional in-situ weather stations, such as those operated by Environment and Climate Change Canada (ECCC). However, newer crowdsourced and Volunteered Geographic Information (VGI) approaches, such as using low-cost sensors, when combined with geographic technologies, have the potential to usher in a new era of micro-scale climate studies.This thesis aims to assess the effectiveness of in-situ sensors in capturing and estimating UHI intensity within Canada. Through an extensive review of literature, the advantages of conventional and crowdsourced in-situ temperature data sources over other sources are identified. Furthermore, the challenges of utilizing data from in-situ sensors for UHI studies are also analysed. The analysis highlights the importance of considering spatial representativeness of in-situ sensors, whether conventional or crowdsourced, due to its influence on estimating UHI intensity. Overall, this thesis expands the current understanding of utilizing in-situ sensors to study UHI dynamics, which benefits policy-making and urban planning initiatives that aim to mitigate the adverse impacts of UHI and improve the resilience of cities to climate change","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/92678","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T10:08:29Z","registered":"2026-05-21T10:08:30Z","published":null,"updated":"2026-05-26T00:36:00Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/38187","type":"dois","attributes":{"doi":"10.82308/38187","identifiers":[{"identifier":"hyrax:vm40xw529","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/132335","identifierType":"uri"}],"creators":[{"name":"Lee, Min Young","nameType":"Personal","givenName":"Min Young","familyName":"Lee","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Statistical modeling of extreme rainfall processes in the context of climate change"}],"publisher":"McGill University","container":{},"publicationYear":2013,"subjects":[{"lang":"","subject":"Civil Engineering"},{"subject":"FOS: Civil engineering","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Nguyen, Van-Thanh-Van (Internal/Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-20","dateType":"Accepted"},{"date":"2013","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Nguyen, Van-Thanh-Van (Internal/Supervisor)","descriptionType":"Other"},{"lang":"fr","description":"La fréquence des tempêtes extrêmes est un facteur critique dans la conception et gestion d'un grand nombre de projets de ressources en eau. Dans la pratique courante, l'estimation des pluies extrêmes est réalisée en se basant sur l'analyse de fréquence statistique des données de précipitations maximales. L'objectif de cette analyse de la fréquence est donc d'estimer le montant maximal de précipitations qui tombent à un moment donné pendant une durée déterminée, ainsi que la période de retour. Les résultats de l'analyse de la fréquence des précipitations sont souvent résumés par les relations Intensité-Durée-Fréquence (IDF) pour un site donné. Toutefois, les méthodes traditionnelles dans le développement des relations IDF ont deux limites majeures. Tout d'abord, ces méthodes n'ont pas été en mesure de tenir compte des caratéristiques des précipitations extrêmes sur des différentes échelles de temps. Deuxièmement, ces méthodes traditionnelles ne tiennent pas compte des impacts potentiels de la variabilité climatique et du changement climatique. Par conséquent, l'objectif principal de cette présente étude est de proposer une méthode d'estimation des précipitations extrêmes améliorée qui pourrait surmonter ces limitations. La méthode proposée a été basée sur l'échelle d'invariance de distribution GEV et la procédure de réduction d'échelle statistique pour construire des relations IDF dans le contexte du changement climatique. La méthode des moments non-centraux a été utilisée pour l'estimation des trois paramètres de la GEV. Les résultats obtenus par une application numérique des données de Précipitations Maximales Annuelles (PMA) à partir d'un réseau de 14 stations pluviométriques en Corée de Sud ont démontré la faisabilité et la précision de la méthode proposée. La série de PMA observée a particulièrement affiché une propriété d'échelle simple. En outre, les liens entre les variables climatiques globaux donnés par les deux Modèles Climatiques Globaux (MCGs) (un en provenance d'Environnement Canada et l'autre du Centre Hadley du Royaume-Uni) et les caractéristiques des précipitations locaux extrêmes ont été établis avec succès pour prédire les changements qui résultent des relations IDF selon des différents scénarios climatiques - A2, A1B, et B2. Il a été constaté que des relations IDF pour les périodes futures (les années 2020, 2050, et 2080) ont démontré des tendances qui augmentent ou diminuent dépendemment des MCG utilisés et du scénario climatique à l'étude.","descriptionType":"Abstract"},{"lang":"en","description":"The occurrence of extreme storms is a critical consideration in the design and management of a large number of water-resource projects. In current engineering practice, the estimation of extreme rainfalls is accomplished based on statistical frequency analysis of maximum precipitation data. The objective of this frequency analysis is hence to estimate the maximum amount of precipitation falling at a given point for a specified duration and return period. Results of precipitation frequency analysis are often summarized by \"intensity-duration-frequency\" (IDF) relationships for a given site. However, traditional methods in the development of IDF relations have two major limitations. Firstly, these existing methods were not able to account for the extreme rainfall characteristics over different time scales. Secondly, these traditional methods cannot take into account the potential impacts of climate variability and climate change. Therefore, the main objective of the present study is to propose an improved method for extreme rainfall estimation that could overcome these limitations. The proposed method was based on the scale-invariance GEV distribution and the statistical downscaling procedure to construct the IDF relations in the context of climate change. The Non-Central Moment method was used for the estimation of the three parameters of the GEV. Results of a numerical application using Annual Maximum Precipitation (AMP) data from a network of 14 rain-gauge stations in South Korea has indicated the feasibility and accuracy of the suggested method. In particular, the observed AMP series displayed a simple scaling behaviour. In addition, the linkages between global climate variables given by two Global Climate Models (GCMs) (one from Environment Canada and one from the UK Hadley Centre) and the local extreme rainfall characteristics have been successfully established for predicting the resulting changes of the IDF relations under different climate change scenarios A2, A1B, and B2. It was found that the IDF relations for future periods (2020's, 2050's, and 2080's) showed increasing or decreasing trends depending on the GCM used and the climate scenario considered.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/132335","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T23:51:56Z","registered":"2026-05-21T23:51:57Z","published":null,"updated":"2026-05-26T00:35:39Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/43801","type":"dois","attributes":{"doi":"10.82308/43801","identifiers":[{"identifier":"hyrax:qf85ng590","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/136862","identifierType":"uri"}],"creators":[{"name":"Gélinas Bélanger, Jérôme","nameType":"Personal","givenName":"Jérôme","familyName":"Gélinas Bélanger","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"The expansion and diversification of the CCA1-LHY-RVE gene family in monocots and dicots"}],"publisher":"McGill University","container":{},"publicationYear":2019,"subjects":[{"lang":"","subject":"Plant Science"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Olivia Wilkins (Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-21","dateType":"Accepted"},{"date":"2019","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Olivia Wilkins (Supervisor)","descriptionType":"Other"},{"lang":"en","description":"Rice (Oryza sativa) is a staple crop for more than 30% of the world population. Maintaining high agricultural yield for this crop is an essential component towards consolidating and achieving food security in numerous developing countries. Currently, climate change is a growing threat for rice culture in tropical areas, and a gradual decrease of 10-15% in the total global rice yield is expected by 2050 because of a higher incidence of abiotic and biotic stresses. The circadian clock is an endogenous timekeeping mechanism found in all prokaryotic and eukaryotic organisms. It coordinates the physiological and molecular responses to abiotic stress, by regulating processes such as stomatal aperture and flowering time in plants. The general goal of this research project aims at characterizing the structural and functional features of the CCA1-LHY-RVE protein family, a MYB transcription factor family involved in the regulation of the circadian rhythm and comprising 11 members in arabidopsis and seven in rice. For the moment, this family has been structurally characterized in arabidopsis, rice and tomato, but no in-depth studies have thoroughly unravelled its role at the molecular level in other model and cultivated monocotyledonous and dicotyledonous species. This research project comprised three main objectives. The first objective consisted by performing a phylogenetic analysis to structurally characterize the CCA1-LHY-RVE protein family in monocots and dicots. To do so, bioinformatics (phylogenetic analysis, determination of identity ratios between protein sequences, motifs discovery) were performed to evaluate the evolutionary and phylogenetic relationships of the CCA1-LHY-RVE protein family in 10 monocotyledonous species and 21 dicotyledonous species. Results reveal that the RVE8 clade members share a high protein sequence identity, ≥ 55%, within the same species and class. Similar observations were made for the LHY clade, whereas the members of the RVE1 clade, the group to which OsEPR1 and AtEPR1 (EARLY PHYTOCHROME RESPONSE 1) both belong, displayed limited inter- and intra-species identity amongst themselves. The second objective was to develop a pipeline for the relative quantification of transcript abundance for six of the seven genes belonging to the CCA1-LHY-RVE family in rice. To achieve this objective, nine primer pairs (three housekeeping genes and six RVE genes) were designed and validated using standard RT-qPCR validation protocol (bioinformatics validation of primer design, standard curves, melt curve analysis, analysis of housekeeping gene stability, gel electrophoresis). The third and last objective was to quantify the relative transcript abundance using RT-qPCR in six members of the CCA1-LHY-RVE family for rice plants that have been subjected to two treatments, a diurnal treatment aiming at observing the daily circadian oscillation of the genes and a heat shock treatment seeking at observing the response of the genes to heat shock. Only two genes, LOC_Os02g45670 and LOC_Os04g49450, were differentially abundant upon a 30 minutes heat shock for the studied timepoints. The results of this research improve our global understanding of the linkages between the circadian clock and the tolerance to abiotic stresses in plants, especially in monocotyledonous species. Findings of this research project strengthen our understanding of the structural conformation and phylogenetic relationships for the CCA1-LHY-RVE protein family in monocotyledonous species and dicotyledonous species. In a broader perspective, the data generated by this project contributes to the current state of knowledge about the phylogenetic relationships of the plant circadian clock between various cultivated species. Moreover, this research project shines a light on the phylogenetic divergence between monocots and dicots for the RVE1 and LHY clades","descriptionType":"Abstract"},{"lang":"fr","description":"Le riz (Oryza sativa) est un aliment de base pour plus de 30% de la population mondiale et le maintien de rendements élevés pour cette culture s'avère un élément essentiel à la sécurité alimentaire pour de nombreux pays en voie de développement. À l'heure actuelle, les changements climatiques représentent une menace importante pour cette culture en zone tropicale et une réduction graduelle de rendement de 10-15% en lien avec une augmentation des stress hydriques et thermiques est anticipée d'ici 2050. L’horloge circadienne est un mécanisme endogène de gestion du temps impliquée dans la coordination de la réponse aux stress abiotiques et biotiques, telles que la régulation de l'aperture stomatale et l'ouverture des bourgeons floraux, dans les végétaux. L’objectif général de ce projet de recherche visait à la caractérisation des attributs structuraux et fonctionnels de la famille de protéines CCA1-LHY-RVE, une famille de facteurs de transcription MYB impliquée dans la régulation du rythme circadien et comprenant 11 membres dans arabidopsis et sept dans le riz. Ce projet de recherche était constitué de trois principaux objectifs. Le premier objectif consistait à entreprendre une analyse phylogénétique détaillée afin de caractériser la famille de protéines CCA1-LHY-RVE sur le plan structural pour diverses espèces de monocotylédones et dicotylédones. Afin de réaliser cet objectif, une analyse bio-informatique (analyse phylogénétique, détermination de la similarité entre les séquences protéiques, découvertes de motifs séquentiels récurrents) a été effectuée afin d’évaluer les liens évolutifs et structuraux de la famille de protéines CCA1-LHY-RVE pour 10 espèces de monocotylédones et 21 espèces de dicotylédones. Les résultats générés démontrent que les membres de la clade RVE8 sont caractérisés par une très forte identité séquentielle protéique, ≥55%, à l’intérieur de la même espèce, ainsi que les mêmes classes. Des observations similaires ont été réalisées pour le groupe de protéines LHY, tandis que les membres de la clade RVE1, le groupe auxquels OsEPR1 et AtEPR1 (EARLY PHYTOCHROME RESPONSE 1) appartiennent, démontrent une faible identité inter et intra-espèce parmi eux-mêmes. Le second objectif de ce projet était de développer une procédure pour la quantification relative de l’abondance de transcripts pour six des sept gènes constituant la famille CCA1-LHY-RVE dans le riz. Pour réaliser cet objectif, neuf paires d’amorces (trois gènes domestiques et six gènes RVE) ont été conçues et validées en utilisant un protocole standard de validation RT-qPCR (évaluation bio-informatique du design des amorces, courbes standards, analyse de la courbe de fusion, détermination de la stabilité des gènes domestiques, électrophorèse sur gel d’agarose). Le troisième et dernier objectif était de quantifier l’expression en mesurant l’abondance de transcripts par technique RT-qPCR des gènes de la famille CCA1-LHY-RVE pour des plants de riz ayant été soumis à deux traitements, un traitement diurnal visant à observer l’oscillation circadienne et un traitement de choc thermique ayant pour but l’évaluation de la réponse des gènes face à ce stress. Les données générées démontrent que seulement deux gènes, LOC_Os02g45670 et LOC_Os04g49450, sont différentiellement abondants suivant un choc thermique de 30 minutes. Les découvertes de ce projet contribuent à une fortification de notre compréhension de la conformation structurelle et des liens phylogénétiques unissant les membres de la famille CCA1-LHY-RVE pour les monocotylédones et les dicotylédones. Dans une perspective plus large, les données générées par ce projet ajoutent une brique à l’état actuel des connaissances à propos des liens phylogénétiques entre les diverses espèces de plantes cultivées, ainsi qu’à la divergence évolutive entre les monocotylédones et dicotylédones pour les clades RVE1 et LHY","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/136862","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-22T03:00:31Z","registered":"2026-05-22T03:00:32Z","published":null,"updated":"2026-05-26T00:35:35Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/31907","type":"dois","attributes":{"doi":"10.82308/31907","identifiers":[{"identifier":"hyrax:bk128d606","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/137957","identifierType":"uri"}],"creators":[{"name":"Guay, Michael","nameType":"Personal","givenName":"Michael","familyName":"Guay","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Assessing the impact of climate-change-induced water scarcity: modeling optimal adaptation strategies for maize and bean producing smallholders in Chiquimula Guatemala"}],"publisher":"McGill University","container":{},"publicationYear":2017,"subjects":[{"lang":"","subject":"Agricultural Economics"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Thomassin, Paul (Internal/Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-21","dateType":"Accepted"},{"date":"2017","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Thomassin, Paul (Internal/Supervisor)","descriptionType":"Other"},{"lang":"fr","description":"Changement échec des cultures induite par le climat est en train de devenir un phénomène plus fréquent avec une grande incertitude quant au degré et la nature des impacts futurs. Un nombre écrasant de ces impacts sont projetées pour être dans la ceinture tropicale ; une région déjà très limitée capitale, où les questions liées à la santé, l'agriculture et les infrastructures sont parmi les nombreux problèmes vivaces. Avec un tel capital limité, le coût d'opportunité des investissements inefficaces est massive. Ainsi, il est nécessaire d'aborder l'incertitude du changement climatique et d'identifier les stratégies d'adaptation qui sont optimales pour la région. Cette étude se concentre sur les petits exploitants de culture de maïs et de haricots dans la région de Chiquimula, Guatemala. Une région qui, au cours des deux dernières décennies, a fait ses preuves pour être parmi le monde les plus vulnérables ; que la fréquence et l'intensité de la sécheresse a augmenté, la région a prouvé incapable de fournir des secours en cas de catastrophe suffisante ou l'aide alimentaire.Alors que les études d'impact climatique et d'adaptation ne sont pas rares, la grande majorité de ces études portent sur une échelle mondiale ou nationale et ne parviennent pas à régler le niveau de la ferme. La recherche suivante évalue spécifiquement l'incertitude du changement climatique au niveau de la ferme. En modélisant l'impact économique des changements climatiques prévus et à l'analyse des stratégies d'adaptation optimales compte tenu des contraintes économiques, cette thèse va suggérer que le génotype mélanges à augmenté avec des degrés divers de la fertilisation et de l'irrigation sont les stratégies optimales pour les petits exploitants à Chiquimula, Guatemala pour contrer les effets du changement climatique. Cette étude se fonde sur des données météorologiques historiques et projections modèle de circulation générale vers le bas-échelle pour simuler les effets météorologiques du changement climatique dans la région. Les projections ont été examinées compte tenu du scénario A2 du GIEC, ainsi que scission entre El Niño et La Niña. Ces données ont été utilisées pour simuler les effets sur le maïs et les haricots rendements en utilisant DSSAT pour déterminer l'impact de l'adaptation et des contraintes principales. Ensuite, un modèle de programmation linéaire a été utilisée pour déterminer l'irrigation optimale, les engrais, le génotype, et les combinaisons de cultures intercalaires compte tenu des contraintes économiques de la région.Les résultats suggèrent que, sans une certaine forme d'adaptation, les agriculteurs de la région continueront à fonctionner à la subsistance de l'aggravation des conditions progressive- ment au cours des trente prochaines années. L'optimisation indique que les petits exploitants de la région peuvent augmenter le revenu global et se prémunir contre les impacts climatiques avec des investissements dans les deux nouveaux génotypes et les infrastructures d'irrigation. L'étude conclut que, bien que les agriculteurs puissent exploiter les avantages de nouveaux génotypes et de l'infrastructure d'irrigation le coût d'opportunité de rester dans l'agriculture et l'élevage maïs et de haricots à petite échelle est élevé par rapport à d'autres options. Par exemple, en déplaçant la production des cultures d'exportation non traditionnels ou le déplacement hors de l'agriculture tout à fait.","descriptionType":"Abstract"},{"lang":"en","description":"Climate change induced crop failure is becoming a more frequent phenomenon with large uncertainty as to the degree and character of future impacts. An overwhelming number of these impacts are projected to be within the tropical belt ; an already highly capital constrained region, where issues related to health, agriculture, and infrastructure are among the many perennial problems. With such limited capital, the opportunity cost of inefficient investments is massive. Thus, it is necessary to address the uncertainty of climate change and pinpoint which adaptation strategies are optimal for the region. This study focuses on maize and bean growing smallholders in the region of Chiquimula, Guatemala. A region which, over the past two decades, has proven to be among the world's most vulnerable ; as the frequency and intensity of drought has increased, the region has proven itself unable to provide sufficient disaster relief or food aid.While climate impact and adaptation studies are not in short supply, the vast majority of these studies focus on a global or national scale and fail to address the farm level. The following research specifically assesses the uncertainty of climate change at the farm level. By modeling the economic impact of projected climate change and analyzing optimal adaptation strategies given economic constraints, this thesis will suggest that genotype mixes augmented with various degrees of fertilization and irrigation are the optimal strategies for smallholders in Chiquimula, Guatemala to counter the effects of climate change. This study draws on historical weather data and down-scaled General Circulation Model projections to simulate the meteorological effects of climate change in the region. The projections were considered given the IPCC A2 scenario, as well as a split between El Niño and La Niña years. These data were used to simulate the effects on maize and bean yields using DSSAT to determine the adaptation impact and principal constraints. Next, a linear programming model was employed to determine optimal irrigation, fertilizer, genotype, and intercropping combinations given the region's economic constraints. The results suggest that without some form of adaptation, farmers within the region will continue to operate at subsistence with gradually worsening conditions over the next thirty years. The optimization indicates that smallholders in the region can increase overall income and guard against climatic impacts with investments in both novel genotypes and irrigation infrastructure. The study concludes that, although farmers can exploit the benefits of novel genotypes and irrigation infrastructure the opportunity cost of remaining in agriculture and farming maize and beans at a small scale is high relative to alternative options. For instance, shifting production to non-traditional export crops or shifting out of agriculture altogether.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/137957","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T16:26:23Z","registered":"2026-05-21T16:26:24Z","published":null,"updated":"2026-05-26T00:35:33Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/22584","type":"dois","attributes":{"doi":"10.82308/22584","identifiers":[{"identifier":"hyrax:b8515t60t","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/103326","identifierType":"uri"}],"creators":[{"name":"Li, Ziwei","nameType":"Personal","givenName":"Ziwei","familyName":"Li","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Predicting Future Winter Subsurface Drainage Dynamics for Subsurface-Drained Croplands in Cold Climates under Climate"}],"publisher":"McGill University","container":{},"publicationYear":2024,"subjects":[{"lang":"","subject":"Bioresource Engineering"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Zhiming Qi (Supervisor)","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-18","dateType":"Accepted"},{"date":"2024","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Zhiming Qi (Supervisor)","descriptionType":"Other"},{"lang":"en","description":"Subsurface drainage is a commonly practiced agricultural management practice in North America to improve crop yield by removing excess water from the field. However, previous studies also discovered that the nutrient leached from the subsurface drainage was a leading contributor to the nutrient loss to surface water bodies. Recent in-situ experiments in subsurface-drained croplands in Eastern Canada revealed that winter is critical in determining the region's annual subsurface drainage flow and associated nutrient loss. However, it has been observed that the winter meteorological conditions are continuously changing in Canada. This thesis investigates the impact of warmer winter on winter subsurface drainage dynamics in Eastern Canada's subsurface-drained croplands by using one of the most detailly described process-based bio-physical models, namely the Root Zone Water Quality-Simultaneous Heat and Water (RZ-SHAW) model. Through a multifaceted research approach, the study explores soil freezing dynamics for croplands in Canada under warmer winters, optimizes the RZ-SHAW model simulation time via a custom parallel-distributed computing framework (RS-DPCF), evaluates the model's winter subsurface drainage simulation accuracy, and predicts future winter subsurface drainage dynamics under climate change scenarios.Key findings reveal the nuanced response of soil freezing to warmer winters, highlighting an increase in soil frozen depth with rising temperatures in specific scenarios where the energy gained from reduced snow insulation outweighs the energy gained through increasing air temperature. This dynamic underscore the critical balance between snow cover reduction and soil energy balance alterations due to climate change. The development of the parallel-distributed RS-DPCF significantly improved model efficiency, enabling faster, scalable calibrations and simulations across multiple sites. The RZ-SHAW model was calibrated and validated and was evaluated to deliver satisfactory performance in simulating winter subsurface drainage for two croplands in Eastern Canada. Comparative analyses of the RZ-SHAW model with machine learning models identified the Cubist and SVM-RBF as efficient alternatives for short-term simulations. However, long-term projections underscored the challenge of temporal limited and unbalanced winter subsurface drainage data in capturing winter hydrology’s full complexity for subsurface-drained croplands in cold climates.Future projections indicate a substantial increase in winter subsurface drainage volume and frequency, with a shift towards a more evenly distributed drainage pattern closely aligning with the monthly precipitation pattern. These shifts, driven by the simulated shorter snow coverage, advanced snowmelt timing, and reduced soil freezing periods, suggest February will emerge as a peak drainage month, reversing traditional patterns and highlighting the evolving challenge of managing winter subsurface drainage under climate change.This research contributes to the broader understanding of agricultural hydrology's response to climate change during winter, offering valuable insights for developing adaptive management strategies in cold climate regions","descriptionType":"Abstract"},{"lang":"fr","description":"Le drainage souterrain est une pratique de gestion agricole couramment utilisée en Amérique du Nord pour améliorer le rendement des cultures en éliminant l'excès d'eau du champ. Toutefois, des études antérieures ont également révélé que les éléments nutritifs lessivés par le drainage souterrain contribuaient largement à la perte d'éléments nutritifs dans les masses d'eau de surface. De récentes expériences in situ sur des terres cultivées à drainage souterrain dans l'est du Canada ont révélé que l'hiver est un facteur critique dans la détermination du flux annuel de drainage souterrain de la région et de la perte de nutriments qui y est associée. Cependant, il a été observé que les conditions météorologiques hivernales changent continuellement au Canada. Cette thèse étudie l'impact d'un hiver plus chaud sur la dynamique du drainage souterrain hivernal dans les terres cultivées drainées en subsurface de l'Est du Canada en utilisant l'un des modèles bio-physiques basés sur les processus les plus détaillés, à savoir le modèle Root Zone Water Quality-Simultaneous Heat and Water (RZ-SHAW). Grâce à une approche de recherche à multiples facettes, l'étude explore la dynamique du gel du sol pour les terres cultivées au Canada sous des hivers plus chauds, optimise le temps de simulation du modèle RZ-SHAW via un cadre de calcul distribué parallèle personnalisé (RS-DPCF), évalue la précision de la simulation du drainage souterrain hivernal du modèle et prédit la dynamique future du drainage souterrain hivernal sous des scénarios de changement climatique.Les principaux résultats révèlent la réponse nuancée du gel du sol aux hivers plus chauds, mettant en évidence une augmentation de la profondeur de gel du sol avec l'augmentation des températures dans des scénarios spécifiques où l'énergie gagnée par la réduction de l'isolation de la neige l'emporte sur l'énergie gagnée par l'augmentation de la température de l'air. Cette dynamique souligne l'équilibre critique entre la réduction de la couverture neigeuse et les modifications de l'équilibre énergétique du sol dues au changement climatique. Le développement du modèle RS-DPCF distribué en parallèle a considérablement amélioré l'efficacité du modèle, permettant des calibrations et des simulations plus rapides et évolutives sur plusieurs sites. Le modèle RZ-SHAW a été calibré et validé et a été évalué comme offrant des performances satisfaisantes dans la simulation du drainage souterrain hivernal pour deux terres cultivées dans l'Est du Canada. Les analyses comparatives du modèle RZ-SHAW avec des modèles d'apprentissage automatique ont identifié le Cubist et le SVM-RBF comme des alternatives efficaces pour les simulations à court terme. Cependant, les projections à long terme ont mis en évidence le défi que représentent les données de drainage souterrain hivernal limitées dans le temps et déséquilibrées pour saisir toute la complexité de l'hydrologie hivernale pour les terres cultivées drainées sous la surface dans les climats froids.Les projections futures indiquent une augmentation substantielle du volume et de la fréquence du drainage souterrain hivernal, avec une évolution vers un schéma de drainage plus uniformément réparti et étroitement aligné sur le schéma des précipitations mensuelles. Ces changements, dus à la simulation d'une couverture neigeuse plus courte, d'une fonte des neiges plus précoce et d'une réduction des périodes de gel du sol, suggèrent que le mois de février deviendra un mois de drainage maximal, inversant les schémas traditionnels et mettant en évidence le défi évolutif que représente la gestion du drainage souterrain hivernal dans le cadre du changement climatique.Cette recherche contribue à une meilleure compréhension de la réponse de l'hydrologie agricole au changement climatique en hiver, offrant des informations précieuses pour le développement de stratégies de gestion adaptatives dans les régions à climat froid","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/103326","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-21T20:15:27Z","registered":"2026-05-21T20:15:28Z","published":null,"updated":"2026-05-26T00:35:09Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}},{"id":"10.82308/27588","type":"dois","attributes":{"doi":"10.82308/27588","identifiers":[{"identifier":"hyrax:c247ds50x","identifierType":"other"},{"identifier":"https://hdl.handle.net/20.500.14905/102057","identifierType":"uri"}],"creators":[{"name":"Yip, Zheng","nameType":"Personal","givenName":"Zheng","familyName":"Yip","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"North Atlantic tropical cyclogenesis potential in climate change: An application of artificial neural networks"}],"publisher":"McGill University","container":{},"publicationYear":2010,"subjects":[{"lang":"","subject":"Earth Sciences - Atmospheric Sciences"}],"contributors":[{"name":"McGill University","affiliation":[],"contributorType":"DataManager","nameIdentifiers":[]},{"name":"McGill University","affiliation":[],"contributorType":"HostingInstitution","nameIdentifiers":[]},{"name":"Yau, Man K (Internal/Supervisor)","nameType":"Personal","affiliation":[],"contributorType":"Supervisor","nameIdentifiers":[]}],"dates":[{"date":"2026-03-18","dateType":"Accepted"},{"date":"2010","dateType":"Issued"}],"language":"en","types":{"ris":"THES","bibtex":"phdthesis","citeproc":"thesis","schemaOrg":"Thesis","resourceType":"https://vocabularies.coar-repositories.org/resource_types/c_46ec/","resourceTypeGeneral":"Dissertation"},"relatedIdentifiers":[],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated."}],"descriptions":[{"lang":"","description":"Yau, Man K (Internal/Supervisor)","descriptionType":"Other"},{"lang":"en","description":"A new methodology employing artificial neural networks is used to project changes in North Atlantic tropical cyclone (TC) genesis potential (GP) and potential intensity (PI) in warming climate. The input data is from simulations of 5 climate models. Emanuel's revised Genesis Potential Index is used to measure the GP. Changes are identified in the 1st (P1) and 2nd (P2) half of the 21st century. The early and late summer GP decreases throughout the 21st century over most of the eastern half of the basin and increases off the east coast of USA and the north coast of Venezuela during P1. The peak summer GP over the region of frequent TC genesis is projected to decrease more substantially in P1 than in P2. PI changes are generally positive and more apparent over the western half of the basin. Vertical wind shear (850-200hPa), temperature (600hPa), and PI are the most important controls of TC genesis in the NAB under changing climate.","descriptionType":"Abstract"},{"lang":"fr","description":"Nous présentons une nouvelle approche à base de réseaux de neurones artificiels pour étudier les changem ents que connaîtraient le potentiel de formation (PF) et l'intensité potentielle (IP) des cyclones tropicaux dans le Bassin de l'Atlantique Nord, dans un futur réchauffement climatique. Les données utilisées sont issues de simulations de 5 modèles climatiques. L'indice de Potentiel de Formation révisé par Emanuel est utilisé pour évaluer le PF des cyclones. Des changements sont identifiés pour la 1ère (P1) et 2ème (P2) moitié du 21ème siècle. Le PF en début et fin d'été diminue au cours du 21ème siècle sur la majeure partie de la moitié est du bassin, alors qu'il augmente au large de la côte est des États-Unis et au large de la côte nord du Venezuela pendant P1. Le point culminant du PF estival au-dessus de la région où génération de cyclones tropicaux est fréquente est projetée à diminuer plus nettement pendant P1 que P2. Les changements que connaîtrait l'IP sont généralement positifs et plus marqués sur la moitié ouest du bassin. Le cisaillement des vents verticaux (850-200hPa), la température (600hPa) et l'intensité potentielle sont, dans un contexte de changement climatique, les facteurs les plus importants dans la formation de cyclones tropicaux dans le Bassin de l'Atlantique Nord.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"url":"https://mcgill.scholaris.ca/handle/20.500.14905/102057","contentUrl":null,"metadataVersion":0,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"mds","isActive":true,"state":"findable","reason":null,"viewCount":0,"downloadCount":0,"referenceCount":0,"citationCount":0,"partCount":0,"partOfCount":0,"versionCount":0,"versionOfCount":0,"created":"2026-05-22T02:26:14Z","registered":"2026-05-22T02:26:15Z","published":null,"updated":"2026-05-26T00:34:40Z"},"relationships":{"client":{"data":{"id":"iyfw.kddaax","type":"clients"}}}}],"meta":{"total":563919,"totalPages":400,"page":1},"links":{"self":"https://api.datacite.org/dois?query=climate","next":"https://api.datacite.org/dois?page%5Bnumber%5D=2\u0026page%5Bsize%5D=25\u0026query=climate"}}