FN Archimer Export Format
PT J
TI Holocene evolution of the North Atlantic subsurface transport
BT 
AF REPSCHLAEGER, Janne
   GARBE-SCHOENBERG, Dieter
   WEINELT, Mara
   SCHNEIDER, Ralph
AS 1:1;2:1;3:2;4:1;
FF 1:;2:;3:;4:;
C1 Univ Kiel, Inst Geosci, D-24118 Kiel, Germany.
   Univ Kiel, Inst Prehist & Protohist Archaeol, D-24118 Kiel, Germany.
C2 UNIV KIEL, GERMANY
   UNIV KIEL, GERMANY
IN DOAJ
IF 3.174
TC 34
UR https://archimer.ifremer.fr/doc/00495/60714/65321.pdf
   https://archimer.ifremer.fr/doc/00495/60714/65322.pdf
   https://archimer.ifremer.fr/doc/00495/60714/65323.pdf
   https://archimer.ifremer.fr/doc/00495/60714/65324.pdf
LA English
DT Article
CR IMAGES V LEG 1-MD114
   IMAGES V LEG 4-MD114
BO Marion Dufresne
AB Previous studies suggested that short-term freshening events in the subpolar gyre can be counterbalanced by advection of saline waters from the subtropical gyre and thus stabilize the Atlantic Meridional Overturning Circulation (AMOC). However, little is known about the inter-gyre transport pathways. Here, we infer changes in surface and subsurface transport between the subtropical and polar North Atlantic during the last 11 000 years, by combining new temperature and salinity reconstructions obtained from combined delta O-18 and Mg/Ca measurements on surface and subsurface dwelling foraminifera with published foraminiferal abundance data from the subtropical North Atlantic, and with salinity and temperature data from the tropical and subpolar North Atlantic. This compilation implies an overall stable subtropical warm surface water transport since 10 ka BP. In contrast, subsurface warm water transport started at about 8 ka but still with subsurface heat storage in the subtropical gyre. The full strength of intergyre exchange was probably reached only after the onset of northward transport of warm saline subsurface waters at about 7 ka BP, associated with the onset of the modern AMOC mode. A critical evaluation of different potential forcing mechanisms leads to the assumption that freshwater supply from the Laurentide Ice Sheet was the main control on subtropical to subpolar ocean transport at surface and subsurface levels. 
PY 2017
PD APR
SO Climate Of The Past
SN 1814-9324
PU Copernicus Gesellschaft Mbh
VL 13
IS 4
UT 000399305900001
BP 333
EP 344
DI 10.5194/cp-13-333-2017
ID 60714
ER

EF