FN Archimer Export Format
PT J
TI Large Scale Salinity Anomaly Has Triggered the Recent Decline of Winter Convection in the Greenland Sea
BT 
AF Almeida, Lucas
   Kolodziejczyk, Nicolas
   Lique, Camille
AS 1:1;2:1;3:2;
FF 1:;2:;3:PDG-ODE-LOPS-OH;
C1 University Brest CNRS Ifremer IRD Laboratoire d'Océanographie Physique et Spatiale (LOPS) IUEM Plouzané France
   University Brest CNRS Ifremer IRD Laboratoire d'Océanographie Physique et Spatiale (LOPS) IUEM Plouzané France
C2 UBO, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-LOPS-OH
UM LOPS
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
IF 5.2
TC 1
UR https://archimer.ifremer.fr/doc/00859/97063/105818.pdf
LA English
DT Article
DE ;convection;physical oceanography;climate system;Nordic Seas;Greenland Sea;oceanography
AB The Greenland Sea is a key region for open ocean convection and ventilation, which exhibit a large variability with periods of strong convection and shutdowns. After a long period of weak winter convection (from the 1970s to the early 1990s), a recovery has been reported, beginning in the 1990s and intensifying in the early 2000s until 2013. Using ISAS, an optimal interpolation product based on Argo observations, we document a recent significant weakening of deep convection between 2014 and 2020, accompanied by a continuous warming of the mixed layer but also a freshening after 2014. These hydrographic changes likely increase the ocean stratification and precondition the shutdown of winter convection. We suggest that these property changes result from a shift of the large scale atmospheric circulation, affecting the source of Atlantic Water to the Nordic seas, causing a freshening of about −0.1 g kg−1 that spreads into the Greenland Sea. 
PY 2023
PD NOV
SO Geophysical Research Letters
SN 0094-8276
PU American Geophysical Union (AGU)
VL 50
IS 21
UT 001088299600001
DI 10.1029/2023GL104766
ID 97063
ER

EF