FN Archimer Export Format
PT J
TI Response of Total and Eddy Kinetic Energy to the recent spin up of the Beaufort Gyre
BT 
AF Regan, Heather
   Lique, Camille
   Talandier, Claude
   Meneghello, Gianluca
AS 1:1;2:1;3:3;4:2;
FF 1:PDG-ODE-LOPS-OH;2:PDG-ODE-LOPS-OH;3:;4:;
C1 Univ. Brest, CNRS, IRD, Ifremer, Laboratoire d’Océanographie Physique et Spatiale (LOPS), IUEM, Brest 29280, France
   Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
   Univ. Brest, CNRS, IRD, Ifremer, Laboratoire d’Océanographie Physique et Spatiale (LOPS), IUEM, Brest 29280, France
C2 IFREMER, FRANCE
   MIT, USA
   CNRS, FRANCE
SI BREST
SE PDG-ODE-LOPS-OH
UM LOPS
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-int-hors-europe
IF 3.373
TC 25
UR https://archimer.ifremer.fr/doc/00598/71015/69288.pdf
LA English
DT Article
DE ;Ocean;Arctic;Eddies;Ocean dynamics;Ocean models
AB The Beaufort Gyre in the Arctic Ocean has spun up over the past two decades in response to changes of the wind forcing and sea ice conditions, accumulating a significant amount of freshwater. Here a simulation performed with a high-resolution, eddy resolving model is analyzed in order to provide a detailed description of the total and eddy kinetic energy, and their response to this spin up of the gyre. On average, and in contrast to the typical open ocean conditions, the levels of mean and eddy kinetic energy are of the same order of magnitude, and the eddy kinetic energy is only intensified along the boundary and in the subsurface. In response to the strong anomalous atmospheric conditions in 2007, the gyre spins up and the mean kinetic energy almost doubles, while the eddy kinetic energy does not increase significantly for a long time period. This is because the isopycnals are able to flatten and the gyre expands outwards, reducing the potential for baroclinic instability. These results have implications for understanding the mechanisms at play for equilibrating the Beaufort Gyre and the variability and future changes of the Arctic freshwater system. 
PY 2020
PD MAR
SO Journal Of Physical Oceanography
SN 0022-3670
PU American Meteorological Society
VL 50
IS 3
UT 000518029100001
BP 575
EP 594
DI 10.1175/JPO-D-19-0234.1
ID 71015
ER

EF