FN Archimer Export Format
PT J
TI Impact of oceanic-scale interactions on the seasonal modulation of ocean dynamics by the atmosphere
BT 
AF SASAKI, Hideharu
   KLEIN, Patrice
   QIU, Bo
   SASAI, Yoshikazu
AS 1:1;2:2;3:3;4:4;
FF 1:;2:;3:;4:;
C1 Application Laboratory, JAMSTEC, 3173-25 Showa-machi, Kanazawa-ku, Yokohama, Kanagawa 236-0001, Japan
   Laboratoire de Physique des Oceans, IFREMER-CNRS-UBO-IRD, Plouzane 29280, France
   Department of Oceanography, University of Hawaii at Manoa, 1000 Pope Road, Honolulu, Hawaii 96822, USA
   Research and Development Center for Global Change, JAMSTEC, 3173-25 Showa-machi, Kanazawa-ku, Yokohama, Kanagawa 236-0001, Japan
C2 JAMSTEC, JAPAN
   CNRS, FRANCE
   UNIV HAWAII, USA
   JAMSTEC, JAPAN
IF 11.47
TC 211
UR https://archimer.ifremer.fr/doc/00250/36098/34642.pdf
   https://archimer.ifremer.fr/doc/00250/36098/34643.pdf
LA English
DT Article
DE ;Earth sciences;Oceanography
AB Ocean eddies (with a size of 100-300 km), ubiquitous in satellite observations, are known to represent about 80% of the total ocean kinetic energy. Recent studies have pointed out the unexpected role of smaller oceanic structures (with 1-50 km scales) in generating and sustaining these eddies. The interpretation proposed so far invokes the internal instability resulting from the large-scale interaction between upper and interior oceanic layers. Here we show, using a new high-resolution simulation of the realistic North Pacific Ocean, that ocean eddies are instead sustained by a different process that involves small-scale mixed-layer instabilities set up by large-scale atmospheric forcing in winter. This leads to a seasonal evolution of the eddy kinetic energy in a very large part of this ocean, with an amplitude varying by a factor almost equal to 2. Perspectives in terms of the impacts on climate dynamics and future satellite observational systems are briefly discussed.
PY 2014
PD DEC
SO Nature Communications
SN 2041-1723
PU Nature Publishing Group
VL 5
UT 000347226900006
BP 1
EP 8
DI 10.1038/ncomms6636
ID 36098
ER

EF