FN Archimer Export Format
PT J
TI Eddy properties in the California Current System
BT 
AF KURIAN, Jaison
   COLAS, Francois
   CAPET, Xavier
   MCWILLIAMS, James C.
   CHELTON, Dudley B.
AS 1:1;2:1;3:2;4:1;5:3;
FF 1:;2:;3:;4:;5:;
C1 Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90095 USA
   IFREMER, UBO, CNRS, Lab Phys Oceans,UMR 6523, F-29280 Plouzane, France
   Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA
C2 UNIV CALIF LOS ANGELES, USA
   CNRS, FRANCE
   UNIV OREGON STATE, USA
IF 3.021
TC 98
UR https://archimer.ifremer.fr/doc/00044/15484/12873.pdf
LA English
DT Article
AB Eddy detection and tracking algorithms are applied to both satellite altimetry and a high-resolution (dx = 5 km) climatological model solution of the U.S. West Coast to study the properties of surface and undercurrent eddies in the California Current System. Eddy properties show remarkable similarity in space and time, and even somewhat in polarity. Summer and fall are the most active seasons for undercurrent eddy generation, while there is less seasonal variation at surface. Most of the eddies have radii in the range of 25-100 km, sea level anomaly amplitudes of 1-4 cm, and vorticity normalized by f amplitudes of 0.025-0.2. Many of the eddies formed near the coast travel considerable distance westward with speeds about 2 km/day, consistent with the beta effect. Anticyclones and cyclones show equatorward and poleward displacements, respectively. Long-lived surface eddies show a cyclonic dominance. The subsurface California Undercurrent generates more long-lived anticyclones than cyclones through instabilities and topographic/coastline effects. In contrast, surface eddies and subsurface cyclones have much more widely distributed birth sites. The majority of the identified eddies have lifetimes less than a season. Eddies extend to 800-1500 m depth and have distinctive vertical structures for cyclones and anticyclones. Eddies show high nonlinearity (rotation speed higher than propagation speed) and hence can be efficient in transporting materials offshore.
PY 2011
PD AUG
SO Journal Of Geophysical Research-oceans
SN 0148-0227
PU Amer Geophysical Union
VL 116
IS C08027
UT 000294364400004
DI 10.1029/2010JC006895
ID 15484
ER

EF