FN Archimer Export Format
PT J
TI Anticyclonic and cyclonic eddies of subtropical origin in the subantarctic zone south of Africa
BT 
AF ARHAN, Michel
   SPEICH, Sabrina
   MESSAGER, Christophe
   DENCAUSSE, Guillaume
   FINE, Rana
   BOYE, Marie
AS 1:1;2:2;3:1,5;4:1;5:3;6:4;
FF 1:PDG-ODE-LPO;2:;3:;4:PDG-ODE-LPO;5:;6:;
C1 Ifremer Ctr Brest, Lab Phys Oceans, CNRS Ifremer IRD UBO, UMR6523, F-29280 Plouzane, France.
   UBO UFR Sci & Tech, Lab Phys Oceans, CNRS Ifremer IRD UBO, UMR6523, F-29238 Brest 3, France.
   Univ Miami, RSMAS MAC, Miami, FL 33149 USA.
   IUEM, Lab Sci Environm Marin, CNRS IRD UBO, UMR6539, F-29280 Plouzane, France.
   CNRS
C2 IFREMER, FRANCE
   UBO, FRANCE
   UNIV MIAMI, USA
   UBO, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-ODE-LPO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 3.021
TC 30
TU Centre national de la recherche scientifique
   Institut de recherche pour le développement
   Institut français de recherche pour l'exploitation de la mer
   Service Hydrographique et Océanographique de la Marine
   Université de Bretagne Occidentale
   Université de Bretagne-Sud
UR https://archimer.ifremer.fr/doc/00051/16220/13745.pdf
LA English
DT Article
CR MD 166 / BONUS-GOODHOPE
BO Marion Dufresne
AB Two eddies, one anticyclonic and the other cyclonic, intersected in the Subantarctic Zone south of South Africa during a hydrographic transect, are described using a large set of measurements including full depth hydrography, Acoustic Doppler Current Profiler velocities, biogeochemical tracers, air-sea fluxes and altimetric sea surface height. Both eddies have a subtropical origin. The anticyclone is an Agulhas ring with convected core water of similar to 12 degrees C, and swirl velocities of 1 m s(-1). It was 9.5 months old when sampled and had crossed the Agulhas Ridge. Though sampled in summer, it was releasing similar to 200 W m(-2) (sensible plus latent heat flux) to the atmosphere. It was observed adjacent to the Subantarctic Front, illustrating the usual encounters of such structures with this front. The cyclone, marked by pronounced low oxygen and CFC anomalies revealing an origin at the continental slope, was 4.5 months old. It had swirl speeds of 0.3 m s(-1), and was coupled with the anticyclone when observed. From their kinematics and water mass properties both structures were found to transport subtropical water down to similar to 900 m, the water trapped below this depth being either from the northern Subantarctic Zone, or local water. The two structures illustrate the capacity of eddies in the region to transfer subtropical and alongslope water properties into the Subantarctic Zone.
PY 2011
PD NOV
SO Journal Of Geophysical Research-oceans
SN 0148-0227
PU Amer Geophysical Union
VL 116
IS C11004
UT 000296620200002
DI 10.1029/2011JC007140
ID 16220
ER

EF