FN Archimer Export Format
PT J
TI Do altimeter wavenumber spectra agree with the interior or surface quasigeostrophic theory?
BT 
AF LE TRAON, Pierre-Yves
   KLEIN, Patrice
   HUA, Bach-Lien
   DIBARBOURE, G
AS 1:1;2:1;3:1;4:2;
FF 1:PDG-DOP-DCB-OPS-LOS;2:;3:PDG-DOP-DCB-OPS-LPO;4:;
C1 IFREMER, Ctr Brest, F-29280 Plouzane, France.
   CLS Space Oceanog Div, St Agne, France.
C2 IFREMER, FRANCE
   CLS, FRANCE
SI BREST
SE PDG-DOP-DCB-OPS-LOS
   PDG-DOP-DCB-OPS-LPO
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 2.375
TC 100
UR https://archimer.ifremer.fr/doc/2008/publication-4118.pdf
LA English
DT Article
AB In high-eddy-energy regions, it is generally assumed that sea level wavenumber spectra compare well with quasigeostrophic (QG) turbulence models and that spectral slopes are close to the expected k(-5) law. This issue is revisited here. Sea level wavenumber spectra in the Gulf Stream, Kuroshio, and Agulhas regions are estimated using the most recent altimeter datasets [the Ocean Topography Experiment (TOPEX)/ Poseidon, Jason-1, the Environmental Satellite (Envisat), and the Geosat Follow-On]. The authors show that spectral slopes in the mesoscale band are significantly different from a k(-5) law, in disagreement with the QG turbulence theory. However, they very closely follow a k(-11/3) slope, which indicates that the surface quasigeostrophic theory (SQG) is a much better dynamical framework than the QG turbulence theory to describe the ocean surface dynamics. Because of the specific properties of the SQG theory, these results offer new perspectives for the analysis and interpretation of satellite data.
PY 2008
PD MAY
SO Journal of Physical Oceanography
SN 0022-3670
PU American Meteorological Society
VL 38
IS 5
UT 000255954700014
BP 1137
EP 1142
DI 10.1175/2007JPO3806.1
ID 4118
ER

EF