10.1594/PANGAEA.761540
Werner, Kirstin
Kirstin
Werner
0000-0001-5260-0348
Spielhagen, Robert F
Robert F
Spielhagen
0000-0001-9740-667X
Bauch, Dorothea
Dorothea
Bauch
0000-0002-1419-9714
Hass, H Christian
H Christian
Hass
0000-0003-2649-6828
Kandiano, Evgenia S
Evgenia S
Kandiano
0000-0003-1783-9999
Zamelczyk, Katarzyna
Katarzyna
Zamelczyk
0000-0002-9876-5807
(Fig. 4) Multiproxy data set of box core MSM5/5-712-1
PANGAEA
2011
DEPTH, sediment/rock
AGE
Age
Foraminifera, planktic, flux
Accumulation rate, ice rafted debris by number
Sortable-silt mean
Size fraction 1.000-0.063 mm
Ice rafted debris
Sea surface salinity
Neogloboquadrina pachyderma sinistral, δ13C
Neogloboquadrina pachyderma sinistral, δ18O
Cibicidoides wuellerstorfi, δ13C
Cibicidoides wuellerstorfi, δ18O
Giant box corer
Calculated, see reference(s)
Mass spectrometer, Finnigan, MAT 253
MSM05/5
Maria S. Merian
Integrierte Analyse zwischeneiszeitlicher Klimadynamik (INTERDYNAMIK)
2007-08-04T09:00:00
en
Supplementary Dataset
10.1016/j.palaeo.2011.05.030
971 data points
text/tab-separated-values
Creative Commons Attribution 3.0 Unported
A multiproxy data set of an AMS radiocarbon dated 46 cm long sediment core from the continental margin off western Svalbard reveals multidecadal climatic variability during the past two millennia. Investigation of planktic and benthic stable isotopes, planktic foraminiferal fauna, and lithogenic parameters aims to unveil the Atlantic Water advection to the eastern Fram Strait by intensity, temperatures, and salinities. Atlantic Water has been continuously present at the site over the last 2,000 years. Superimposed on the increase in sea ice/icebergs, a strengthened intensity of Atlantic Water inflow and seasonal ice-free conditions were detected at ~ 1000 to 1200 AD, during the well-known Medieval Climate Anomaly (MCA). However, temperatures of the MCA never exceeded those of the 20th century. Since ~ 1400 AD significantly higher portions of ice rafted debris and high planktic foraminifer fluxes suggest that the site was located in the region of a seasonal highly fluctuating sea ice margin. A sharp reduction in planktic foraminifer fluxes around 800 AD and after 1730 AD indicates cool summer conditions with major influence of sea ice/icebergs. High amounts of the subpolar planktic foraminifer species Turborotalia quinqueloba in size fraction 150–250 µm indicate strengthened Atlantic Water inflow to the eastern Fram Strait already after ~ 1860 AD. Nevertheless surface conditions stayed cold well into the 20th century indicated by low planktic foraminiferal fluxes. Most likely at the beginning of the 20th century, cold conditions of the terminating Little Ice Age period persisted at the surface whereas warm and saline Atlantic Water already strengthened, hereby subsiding below the cold upper mixed layer. Surface sediments with high abundances of subpolar planktic foraminifers indicate a strong inflow of Atlantic Water providing seasonal ice-free conditions in the eastern Fram Strait during the last few decades.
See also doi:10.1594/PANGAEA.755114
Supplement to: Werner, Kirstin; Spielhagen, Robert F; Bauch, Dorothea; Hass, H Christian; Kandiano, Evgenia S; Zamelczyk, Katarzyna (2011): Atlantic Water advection to the eastern Fram Strait - multiproxy evidence for late Holocene variability. Palaeogeography, Palaeoclimatology, Palaeoecology, 308(3-4), 264-276
6.767167
78.915662
Fram Strait
German Research Foundation
https://doi.org/10.13039/501100001659
25575884
Integrierte Analyse zwischeneiszeitlicher Klimadynamik