FN Archimer Export Format
PT J
TI Dynamical reconstruction of the global ocean state during the Last Glacial Maximum
BT 
AF KURAHASHI-NAKAMURA, Takasumi
   PAUL, Andre
   LOSCH, Martin
AS 1:1,2;2:1,2;3:1,3;
FF 1:;2:;3:;
C1 Univ Bremen, MARUM Ctr Marine Environm Sci, Bremen, Germany.
   Univ Bremen, Fac Geosci, Bremen, Germany.
   Alfred Wegener Inst Polar & Marine Res, Bremerhaven, Germany.
C2 UNIV BREMEN, GERMANY
   UNIV BREMEN, GERMANY
   INST A WEGENER, GERMANY
IF 2.718
TC 45
UR https://archimer.ifremer.fr/doc/00383/49466/49951.pdf
LA English
DT Article
CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
DE ;Last Glacial Maximum;ocean circulation;AMOC;proxy records;ocean general circulation model;data assimilation
AB The global ocean state for the modern age and for the Last Glacial Maximum (LGM) was dynamically reconstructed with a sophisticated data assimilation technique. A substantial amount of data including global seawater temperature, salinity (only for the modern estimate), and the isotopic composition of oxygen and carbon (only in the Atlantic for the LGM) were integrated into an ocean general circulation model with the help of the adjoint method, thereby the model was optimized to reconstruct plausible continuous fields of tracers, overturning circulation and water mass distribution. The adjoint-based LGM state estimation of this study represents the state of the art in terms of the length of forward model runs, the number of observations assimilated, and the model domain. Compared to the modern state, the reconstructed continuous sea-surface temperature field for the LGM shows a global-mean cooling of 2.2 K, and the reconstructed LGM ocean has a more vigorous Atlantic meridional overturning circulation, shallower North Atlantic Deep Water (NADW) equivalent, stronger stratification, and more saline deep water. 
PY 2017
PD APR
SO Paleoceanography
SN 0883-8305
PU Amer Geophysical Union
VL 32
IS 4
UT 000401142500001
BP 326
EP 350
DI 10.1002/2016PA003001
ID 49466
ER

EF