FN Archimer Export Format
PT J
TI Diagnosing Surface Mixed Layer Dynamics from High-Resolution Satellite Observations: Numerical Insights
BT 
AF PONTE, Aurelien
   KLEIN, Patrice
   CAPET, Xavier
   LE TRAON, Pierre-Yves
   CHAPRON, Bertrand
   LHERMINIER, Pascale
AS 1:1;2:1;3:2;4:3;5:3;6:1;
FF 1:PDG-ODE-LPO;2:;3:;4:PDG-ODE-ADM3;5:PDG-ODE-LOS;6:PDG-ODE-LPO;
C1 IFREMER, CNRS, UBO, Lab Phys Oceans,IRD, F-29280 Plouzane, France.
   IPSL, LOCEAN, Paris, France.
   IFREMER, Lab Oceanog Spatiale, F-29280 Plouzane, France.
C2 IFREMER, FRANCE
   IPSL, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-LPO
   PDG-ODE-ADM3
   PDG-ODE-LOS
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 2.871
TC 26
UR https://archimer.ifremer.fr/doc/00170/28076/26291.pdf
LA English
DT Article
DE ;Mesoscale processes;Ocean dynamics;Turbulence
AB High-resolution numerical experiments of ocean mesoscale eddy turbulence show that the wind-driven mixed layer (ML) dynamics affects mesoscale motions in the surface layers at scales lower than O(60 km). At these scales, surface horizontal currents are still coherent to, but weaker than, those derived from sea surface height using geostrophy. Vertical motions, on the other hand, are stronger than those diagnosed using the adiabatic quasigeotrophic (QG) framework. An analytical model, based on a scaling analysis and on simple dynamical arguments, provides a physical understanding and leads to a parameterization of these features in terms of vertical mixing. These results are valid when the wind-driven velocity scale is much smaller than that associated with eddies and the Ekman number (related to the ratio between the Ekman and ML depth) is not small. This suggests that, in these specific situations, three-dimensional ML motions (including the vertical velocity) can be diagnosed from high-resolution satellite observations combined with a climatological knowledge of ML conditions and interior stratification.
PY 2013
PD JUN
SO Journal Of Physical Oceanography
SN 0022-3670
PU Amer Meteorological Soc
VL 43
IS 7
UT 000329778000007
BP 1345
EP 1355
DI 10.1175/JPO-D-12-0136.1
ID 28076
ER

EF