FN Archimer Export Format
PT J
TI Dynamics of an Equatorial River Plume: Theory and Numerical Experiments Applied to the Congo Plume Case
BT 
AF VIC, Clement
   BERGER, Henrick
   TREGUIER, Anne-Marie
   COUVELARD, Xavier
AS 1:3;2:2;3:4;4:1,3;
FF 1:;2:;3:;4:PDG-ODE-DYNECO-PHYSED;
C1 UBO IFREMER CNRS IRD, UMR6523, Lab Phys Oceans, Brest, France.
   Actimar, Brest, France.
C2 IFREMER, FRANCE
   ACTIMAR, FRANCE
   UBO, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-ODE-DYNECO-PHYSED
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.856
TC 13
TU Centre national de la recherche scientifique
   Institut de recherche pour le développement
   Institut français de recherche pour l'exploitation de la mer
   Université de Bretagne Occidentale
UR https://archimer.ifremer.fr/doc/00187/29850/28298.pdf
LA English
DT Article
CR BIOZAIRE 1
   BIOZAIRE 2
   BIOZAIRE 3
BO Unknown
   Anchored Buoy
DE ;Geographic location;entity;Rivers;Circulation;Dynamics;Coastal flows;Density currents;Eddies;Nonlinear dynamics;Topographic effects
AB The Congo River has the second largest rate of flow in the world and is mainly responsible for the broad tongue of low-salinity water that is observed in the Gulf of Guinea. Despite their importance, near-equatorial river plumes have not been studied as thoroughly as midlatitude plumes and their dynamics remain unclear. Using both theory and idealized numerical experiments that reproduce the major characteristics of the region, the authors have investigated the dynamics of the Congo River plume and examine its sensitivity to different forcing mechanisms. It is found that near-equatorial plumes are more likely to be surface trapped than midlatitude plumes, and the importance of the effect in describing the strong offshore extent of the low-salinity tongue during most of the year is demonstrated. It is shown that the buoyant plume constrained by the geomorphology is subject to the pulling of nonlinear structures and wavelike equatorial dynamics. The wind is found to strengthen the intrinsic buoyancy-driven dynamics and impede the development of the coastal southward current, in coherence with observations.
PY 2014
PD MAR
SO Journal Of Physical Oceanography
SN 0022-3670
PU Amer Meteorological Soc
VL 44
IS 3
UT 000332425700025
BP 980
EP 994
DI 10.1175/JPO-D-13-0132.1
ID 29850
ER

EF