FN Archimer Export Format
PT J
TI Inertial Resonance Induced by an Oceanic Jet
BT 
AF KLEIN, Patrice
   TREGUIER, Anne-Marie
AS 1:1;2:1;
FF 1:;2:;
C1 IFREMER,CTR BREST,PHYS OCEANS LAB,BP 70,F-29280 PLOUZANE,FRANCE.
C2 IFREMER, FRANCE
IN WOS Ifremer jusqu'en 2018
IF 1.948
TC 15
UR https://archimer.ifremer.fr/doc/00192/30369/29050.pdf
LA English
DT Article
AB The dynamics of the mixed layer in the presence of an embedded geostrophic jet has been investigated using a simple 1 1/2-layer model and a two-dimensional primitive equation model. The jet vorticity induces a spatial variability of the wind-driven inertial motions that can have some important consequences on the mixed-layer dynamics. With a steady wind stress parallel to the front. the main effect is the generation of steady upwellings and downwellings due to the divergence of the mean Ekman drift (as reported by Niiler). With a cross-front wind, however, a dramatic exponential amplification of the inertial oscillations caused by an inertial resonance mechanism is found: this mechanism can increase the inertial waves amplitude by a factor up to 10 within ten inertial periods. Competition between this resonance mechanism and the dispersion mechanisms (mainly the horizontal and vertical propagation of inertial waves) that can limit its effects has been assessed. A consequence of horizontal propagation is that energetic waves can propagate well away from the jet while continuing to absorb energy from the wind. Downward propagation disperses this energy to a depth of at least 500 m in a few days.
PY 1993
PD SEP
SO Journal of Physical Oceanography
SN 0022-3670
PU American Meteorological Society
VL 23
IS 9
UT A1993LX81900001
BP 1897
EP 1915
DI 10.1175/1520-0485(1993)023<1897:IRIBAO>2.0.CO;2
ID 30369
ER

EF