@inproceedings{fdi:010072105,
  title = {{T}he southern {S}enegal coastal ocean : a low enrichment-high retention upwelling center [r{\'e}sum{\'e}]},
  author = {{C}apet, {X}. and {N}doye, {S}. and {E}strade, {P}. and {S}ow, {B}. and {M}achu, {E}ric and {B}rochier, {T}imoth{\'e}e and {D}{\¨o}ring, {J}. and {B}rehmer, {P}atrice},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he circulation associated with coastal upwelling is well understood in simple 2{D} alongshore invariant situations. {S}outhern {S}enegal is the southern tip of the {C}anary upwelling system. {I}ts coastal ocean hosts an upwelling center which shapes sea surface temperatures over several degrees in latitudes, ~ between 12 and 15{N}. {N}ear this latter latitude, the {C}ape {V}erde headland and a sudden change in shelf cross-shore profile are two major sources of heterogeneity present in the southern {S}enegal upwelling sector ({SSUS}), whose dynamics is herein investigated by means of primitive equation numerical simulations, using the hydrodynamical {R}egional {O}cean {M}odeling {S}ystem ({ROMS}). {C}onfiguration realism and resolution (dx ~ 2 km) are sufficient to reproduce the frontal system present during the upwelling season in the {SSUS}. {O}ur main focus is on the 3{D} upwelling circulation which turns out to be profoundy different from 2{D} theory: coastal upwelling is strongly concentrated within a few tens of kilometers south of {C}ape {V}erde and largely arises from flow divergence in the alongshore direction; most injections of cold water onto the shelf take place in the same northern area; a significant fraction of the upwelled waters are retained nearshore over long distances while travelling southward under the influence of northerly winds. {A}nother source of alongshore complexity, regional scale alongshore pressure gradients, also contributes to the overall retention of upwelled waters over the shelf. {V}arying the degree of realisms of atmospheric and oceanic forcings does not appreciably change these conclusions. {T}he study sheds light on the dynamics and circulation underlying the recurrent {SST} pattern observed during the upwelling season and offers new perspectives on the connections between {SSUS} physical environment and its ecosystems.},
  keywords = {{SENEGAL} ; {CAP} {VERT} ; {CANARIAS} ; {ATLANTIQUE}},
  numero = {},
  pages = {24--25},
  booktitle = {{I}nternational conference {ICAWA} 2016 : extended book of abstract : the {AWA} project : ecosystem approach to the management of fisheries and the marine environment in {W}est {A}frican waters},
  year = {2017},
  ISBN = {978-2-9553602-0-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072105},
}