FN Archimer Export Format
PT J
TI Observed mechanisms activating the recent subpolar North Atlantic Warming since 2016
BT 
AF Chafik, Léon
   Penny Holliday, N.
   Bacon, Sheldon
   Baker, Jonathan A.
   Desbruyères, Damien
   Frajka-Williams, Eleanor
   Jackson, Laura C.
AS 1:1,2;2:2;3:2;4:3;5:4;6:5;7:3;
FF 1:;2:;3:;4:;5:PDG-ODE-LOPS-OH;6:;7:;
C1 Department of Meteorology, Stockholm University, Stockholm, Sweden
   National Oceanography Centre, Southampton, UK
   Met Office, Hadley Centre, Exeter, UK
   Laboratoire d’Ocèanographie Physique et Spatiale (LOPS), Univ Brest, CNRS, Ifremer, IRD, IUEM, 29280 Plouzané, France
   University of Hamburg, Hamburg, Germany
C2 UNIV STOCKHOLM, SWEDEN
   NOC, UK
   MET OFFICE, UK
   IFREMER, FRANCE
   UNIV HAMBURG, GERMANY
SI BREST
SE PDG-ODE-LOPS-OH
UM LOPS
IN WOS Ifremer UMR
   copubli-europe
IF 5
TC 1
UR https://archimer.ifremer.fr/doc/00858/96984/105672.pdf
LA English
DT Article
DE ;Atlantic meridional overturning circulation
AB The overturning circulation of the subpolar North Atlantic (SPNA) plays a fundamental role in Earth’s climate variability and change. Here, we show from observations that the recent warming period since about 2016 in the eastern SPNA involves increased western boundary density at the intergyre boundary, likely due to enhanced buoyancy forcing as a response to the strong increase in the North Atlantic Oscillation since the early 2010s. As these deep positive density anomalies spread southward along the western boundary, they enhance the North Atlantic Current and associated meridional heat transport at the intergyre region, leading to increased influx of subtropical heat into the eastern SPNA. Based on the timing of this chain of events, we conclude that this recent warming phase since about 2016 is primarily associated with this observed mechanism of changes in deep western boundary density, an essential element in these interactions. This article is part of a discussion meeting issue ‘Atlantic overturning: new observations and challenges’. 
PY 2023
PD DEC
SO Philosophical Transactions Of The Royal Society A-mathematical Physical And Engineering Sciences
SN 1364-503X
PU The Royal Society
VL 381
IS 2262
UT 001100640400009
DI 10.1098/rsta.2022.0183
ID 96984
ER

EF