10.1594/PANGAEA.692144
Pflaumann, Uwe
Uwe
Pflaumann
Sarnthein, Michael
Michael
Sarnthein
Chapman, Mark R
Mark R
Chapman
de Abreu, Lucia
Lucia
de Abreu
Funnell, Brian M
Brian M
Funnell
Hüls, Matthias
Matthias
Hüls
Kiefer, Thorsten
Thorsten
Kiefer
Maslin, Mark A
Mark A
Maslin
0000-0001-9957-3463
Schulz, Hartmut
Hartmut
Schulz
Swallow, John
John
Swallow
van Kreveld, Shirley A
Shirley A
van Kreveld
Vautravers, Maryline J
Maryline J
Vautravers
0000-0003-2534-219X
Vogelsang, Elke
Elke
Vogelsang
Weinelt, Mara
Mara
Weinelt
0000-0001-5438-4546
Glacial North Atlantic: Sea surface conditions reconstructed by GLAMAP 2000
PANGAEA
2003
Piston corer
Kasten corer
Free fall corer
Giant box corer
Gravity corer (Kiel type)
Multiple opening/closing net
MultiCorer
Box corer (Reineck)
Bottle, Niskin
Sphincter corer
Piston corer (Kiel type)
van Veen Grab
Box corer
Rumohr-Lot
Television-Grab
Plankton net
CTD/Rosette
Calypso Corer
Piston corer (BGR type)
A150/180
A181/185
D184
CD53
CIRCE
M6/6
M9/4
M12/1
M15/2
M16/1
M16/2
M20/2
M19
M25
VA-10/3
M51
M39
M57
M53
M60
POS158/2
M65
ANT-IV/1c
M6/5
M11/1
M13/2
M2/1
M2/2
M7/2
M7/3
M7/4
M7/5
M10/3
M17/1
M17/2
M21/5
M26/3
POS210/2
INMD
M30
MD101
ARK-II/4
ARK-II/5
ARK-III/3
ARK-IV/3
ARK-V/2
ARK-V/3b
ARK-VII/3b
ARK-VIII/2
ARK-IX/4
ARK-X/2
RC08
RC09
RC10
RC11
RC12
RC13
RC15
RC24
SO75/3
CEPAG
PALEOCINAT
V02
V03
V04
V05
V06
V07
V09
V10
V12
V14
V15
V16
V17
V18
V19
V20
V22
V23
V24
V25
V26
V27
V28
V29
V30
V32
Discovery (1962)
Charles Darwin
Melville
Meteor (1986)
Meteor (1964)
Valdivia (1961)
Poseidon
Polarstern
Marion Dufresne (1995)
Robert Conrad
Sonne
Le Suroît
Vema
Glacial Atlantic Ocean Mapping (GLAMAP2000)
International Marine Global Change Study (IMAGES)
Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)
1953-07-30T00:00:00/1997-09-03T00:54:00
Supplementary Publication Series of Datasets
10.1029/2002PA000774
4 datasets
application/zip
Creative Commons Attribution 3.0 Unported
The response of the tropical ocean to global climate change and the extent of sea ice in the glacial nordic seas belong to the great controversies in paleoclimatology. Our new reconstruction of peak glacial sea surface temperatures (SSTs) in the Atlantic is based on census counts of planktic foraminifera, using the Maximum Similarity Technique Version 28 (SIMMAX-28) modern analog technique with 947 modern analog samples and 119 well-dated sediment cores. Our study compares two slightly different scenarios of the Last Glacial Maximum (LGM), the Environmental Processes of the Ice Age: Land, Oceans, Glaciers (EPILOG), and Glacial Atlantic Ocean Mapping (GLAMAP 2000) time slices. The comparison shows that the maximum LGM cooling in the Southern Hemisphere slightly preceeded that in the north. In both time slices sea ice was restricted to the north western margin of the nordic seas during glacial northern summer, while the central and eastern parts were ice-free. During northern glacial winter, sea ice advanced to the south of Iceland and Faeroe. In the central northern North Atlantic an anticyclonic gyre formed between 45° and 60°N, with a cool water mass centered west of Ireland, where glacial cooling reached a maximum of >12°C. In the subtropical ocean gyres the new reconstruction supports the glacial-to-interglacial stability of SST as shown by CLIMAP Project Members (CLIMAP) [1981]. The zonal belt of minimum SST seasonality between 2° and 6°N suggests that the LGM caloric equator occupied the same latitude as today. In contrast to the CLIMAP reconstruction, the glacial cooling of the tropical east Atlantic upwelling belt reached up to 6°–8°C during Northern Hemisphere summer. Differences between these SIMMAX-based and published U37[k]- and Mg/Ca-based equatorial SST records are ascribed to strong SST seasonalities and SST signals that were produced by different planktic species groups during different seasons.
Supplement to: Pflaumann, Uwe; Sarnthein, Michael; Chapman, Mark R; de Abreu, Lucia; Funnell, Brian M; Hüls, Matthias; Kiefer, Thorsten; Maslin, Mark A; Schulz, Hartmut; Swallow, John; van Kreveld, Shirley A; Vautravers, Maryline J; Vogelsang, Elke; Weinelt, Mara (2003): Glacial North Atlantic: Sea-surface conditions reconstructed by GLAMAP 2000. Paleoceanography, 18(3), 1065
-92.47
40.9083333333333
-56.83
85.39
Northeast Atlantic
South Atlantic Ocean
Walvis Ridge
Angola Basin
Walvis Ridge, Southeast Atlantic Ocean
Guinea Basin
Equatorial Atlantic
Brazil Basin
Cape Basin
Hunter Channel
Eastern Rio Grande Rise
Northern Guinea Basin
Southwest Guinea Basin
Cardno Seamount
West Angola Basin
Mid Atlantic Ridge
East Brazil Basin
Amazon Fan
Congo Fan
Namibia Continental Margin
Namibia continental slope
Atlantic Ocean
East Atlantic
North Atlantic
off West Africa
off Iceland
off Guinea
eastern Romanche Fracture Zone
Sierra Leone Basin/Guinea Basin
off Liberia
off eastern Ghana
off Nigeria
off Nigeria-Delta
off Gabun
Biscaya
Norwegian Sea
Arctic Ocean
Greenland Sea
Norwegian-Greenland Sea
Voring Plateau
Bear Island Fan
Porto Seamount
Fram Strait
Iceland Sea
Svalbard
Antarctic Ocean
Yermak Plateau
Jan Mayen Fracture Zone
Greenland Slope
Barents Sea
East Greenland Sea
Denmark Strait
Aegir Ridge, Norwegian-Greenland Sea
off Portugal
Indian Ocean