FN Archimer Export Format
PT J
TI Modeled mixed-layer salinity balance in the Gulf of Guinea: seasonal and interannual variability
BT 
AF DA-ALLADA, Casimir Yelognisse
   DU PENHOAT, Yves
   JOUANNO, Julien
   ALORY, Gael
   HOUNKONNOU, Norbert Mahouton
AS 1:1,2,3,4,5;2:1,4;3:6;4:1,2,3,7;5:1;
FF 1:;2:;3:;4:;5:;
C1 Univ Abomey Calavi, Int Chair Math Phys & Applicat, ICMPA UNESCO Chair, Cotonou, Benin.
   Univ Toulouse, F-31400 Toulouse, France.
   IRD, LEGOS, F-31400 Toulouse, France.
   IRHOB, Cotonou, Benin.
   Ifremer, LPO UMR 6523, CNRS/Ifremer/IRD/UBO, Plouzané, France
   CICESE, Dept Oceanog Fis, Ensenada, Baja California, Mexico.
   LEGOS, CNAP, Toulouse, France.
C2 UNIV ABOMEY CALAVI, BENIN
   UNIV TOULOUSE, FRANCE
   IRD, FRANCE
   IRHOB, BENIN
   CNRS, FRANCE
   CICESE, MEXICO
   LEGOS, FRANCE
IF 1.943
TC 19
UR https://archimer.ifremer.fr/doc/00242/35333/36310.pdf
LA English
DT Article
CR EGEE/1
   EGEE/2
   EGEE/3
   EGEE/4
   EGEE/5
   EGEE/6
   PIRATA-FR06
   PIRATA-FR08
   PIRATA-FR09
   PIRATA-FR1
   PIRATA-FR10
   PIRATA-FR11
   PIRATA-FR11BIS
   PIRATA-FR12
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   PIRATA-FR16
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   PIRATA-FR19
   PIRATA-FR1BIS
   PIRATA-FR2
   PIRATA-FR3
   PIRATA-FR5
BO Le Suroît
   L'Atalante
   Antea
DE ;Sea surface salinity;Gulf of guinea;Model;Mixed-layer budget;Seasonal variability;Interannual variability
AB A regional numerical simulation and observations were used to investigate the various processes controlling mixed-layer salinity balance on seasonal and interannual time scales in the Gulf of Guinea. Processes were quantified using a mixed-layer salt budget. Model results correctly reproduced the mean, phase, and amplitude of observed seasonal near-surface salinity. The results indicated that on seasonal time scales, the mixed-layer salinity balance differed from one region to another. The surface salinity seasonal cycle was characterized by strong salinization during May for coastal areas north and south of the equator. Model results suggested that vertical mixing controls the mixed-layer salinity increase at the equator during May, while both vertical mixing and vertical advection contribute to the salinity increase in coastal regions. We also determined that freshening from horizontal advection and freshwater flux tended to balance the salinization effects of vertical diffusion and vertical advection during the seasonal cycle. On interannual time scales, based on the mixed-layer salinity balance and sensitivity experiments, we determined that for the northern and equatorial Gulf of Guinea, changes in near-surface salinity were largely due to changes in precipitation and winds. For the southern Gulf of Guinea, only wind changes were determined to be important for explaining near-surface salinity changes.
PY 2014
PD DEC
SO Ocean Dynamics
SN 1616-7341
PU Springer Heidelberg
VL 64
IS 12
UT 000345086100006
BP 1783
EP 1802
DI 10.1007/s10236-014-0775-9
ID 35333
ER

EF