FN Archimer Export Format
PT J
TI Transports of the Brazil and Malvinas currents at their confluence
BT 
AF MAAMAATUAIAHUTAPU, Keitapu
   GARCON, Véronique
   PROVOST, Christine
   MERCIER, Herle
AS 1:1;2:1;3:2;4:3,4;
FF 1:;2:;3:;4:;
C1 CNRS, UMR 5566 CNRS, Grp Rech Geodesie Spatiale, Toulouse, France.
   Univ Paris 06, CNRS, Lab Oceanog Dynam & Climatol, Paris, France.
   IFREMER, Universite Bretagne Occidentale, IFREMER, UMR CNRS, Lab Phys Oceans,Ctr Brest, Plouzane, France.
   CNRS, Universite Bretagne Occidentale, IFREMER, UMR CNRS, Lab Phys Oceans,Ctr Brest, Plouzane, France.
C2 CNRS, FRANCE
   UNIV PARIS 06, FRANCE
   IFREMER, FRANCE
   CNRS, FRANCE
IN WOS Ifremer jusqu'en 2018
IF 1.438
TC 24
UR https://archimer.ifremer.fr/doc/00447/55898/57923.pdf
LA English
DT Article
CR CONFLUENCE 3
BO Le Suroît
AB Geostrophic transports of the western boundary currents at the Brazil/Malvinas Confluence in the South Atlantic Ocean are estimated from the data set of the Confluence 3 cruise (February 1990) with a nonlinear inverse model which takes into consideration density, current meter and wind data, and dynamical (planetary vorticity, Ekman, mass conservation) constraints. Inversions are carried out with two initial different levels of no motion at 1500 m (Case A) and at 3000 m (Case B). Consistencies of the water volume transports provided by both inversions are analyzed and compared to previous estimates. Current meter constraints are applied in the Malvinas Current region where a total transport of 45 +/- 7 Sv (1 Sv = 10(6) m(3) s(-1)) is given by both inversions. Within the Brazil Current region, discrepancies between both inversions appear. Case A provides a total transport of 30 +/- 7 Sv while case B gives a total transport of 56 +/- 8 Sv. In the first two layers (0-1000 m; 1000-2000 m), case B (53 Sv) gives larger transport than case A (32 Sv). North of the Confluence and at the North Atlantic level, water is found to flow northward in case A at a rate of 3.4 +/- 2 Sv and southward in case B at a rate of 3 +/- 3 Sv. Case B results are more in agreement with our present knowledge of water mass circulation in the Confluence region than case A results. Eastward transports at the Brazil-Malvinas Confluence are estimated to be 20 +/- 7 Sv and 30 +/- 7 Sv for cases A and B, respectively. Compared to the total transports of the Brazil and Malvinas Currents, these estimates suggest that most of the water supplied to the Confluence area recirculates within the Brazil Current and the Malvinas Current regions. 
PY 1998
PD MAR
SO Journal Of Marine Research
SN 0022-2402
PU Sears Foundation Marine Research
VL 56
IS 2
UT 000073642800005
BP 417
EP 438
DI 10.1357/002224098321822366
ID 55898
ER

EF