FN Archimer Export Format
PT J
TI Estimation of the Agulhas ring impacts on meridional heat fluxes and transport using ARGO floats and satellite data
BT 
AF AZEVEDO CORREIA, Joao Marcos
   DE BOYER MONTEGUT, Clement
   CABANES, Cecile
   KLEIN, Patrice
AS 1:1,4;2:1;3:2,5;4:3,5;
FF 1:;2:PDG-ODE-LOS;3:;4:;
C1 IFREMER, Lab Oceanog Spatiale, Ctr Brest, F-29280 Plouzane, France.
   IFREMER, DT INSU, Ctr Brest, F-29280 Plouzane, France.
   IFREMER, Lab Phys Oceans, Ctr Brest, F-29280 Plouzane, France.
   UBO
   CNRS
C2 IFREMER, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
   UBO, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-ODE-LOS
   PDG-ODE-LPO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 3.792
TC 50
UR https://archimer.ifremer.fr/doc/00051/16221/13746.pdf
LA English
DT Article
AB A method that combines vertical profiles from the ARGO floats program and satellite Sea Surface Height (SSH) data is used to reconstruct the vertical structure of the Agulhas rings. All eddies shed by the Agulhas retroflection in the period between January 2005 and December 2008 were successfully reconstructed. The velocity structures obtained are tilted and phase shifted in relation to the temperature anomalies, resulting in an annual mean eddy meridional heat flux across the ring paths of 0.062 +/- 0.012 PW (northward). A first order estimate indicates 0.07 PW entering the Atlantic from the Indian Ocean through Agulhas rings. The volume transport by Agulhas rings is believed to play a central role in the overturning circulation, being the main process responsible for the leakage of Indian Ocean waters to the Atlantic. The new estimates of the [time mean] ring volume transport of 9 +/- 8 Sv from the Indian to the Atlantic Ocean fall in the range obtained by previous works. These estimates include a better representation of the trapped water region in the eddies. A large inter-annual variability in the volume transport was observed, with a maximum of similar to 11-21 Sv in 2007. This variability is related to the number of structures shed by the Agulhas retroflexion per year. The ring shapes play a secondary, though important, role. Citation: Souza, J. M. A. C., C. de Boyer Montegut, C. Cabanes, and P. Klein (2011), Estimation of the Agulhas ring impacts on meridional heat fluxes and transport using ARGO floats and satellite data, Geophys. Res. Lett., 38, L21602, doi:10.1029/2011GL049359.
PY 2011
PD NOV
SO Geophysical Research Letters
SN 0094-8276
PU Amer Geophysical Union
VL 38
IS L21602
UT 000296618900003
BP 1
EP 5
DI 10.1029/2011GL049359
ID 16221
ER

EF