@article{fdi:010070175,
  title = {{R}espective roles of the {G}uinea current and local winds on the coastal upwelling in the northern {G}ulf of {G}uinea},
  author = {{D}jakour{\'e}, {S}. and {P}enven, {P}ierrick and {B}ourl{\`e}s, {B}ernard and {K}on{\'e}, {V}. and {V}eitch, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he northern {G}ulf of {G}uinea is a part of the eastern tropical {A}tlantic where oceanic conditions due to the presence of coastal upwelling may influence the regional climate and fisheries. {T}he dynamics of this coastal upwelling is still poorly understood. {A} sensitivity experiment based on the {R}egional {O}ceanic {M}odeling {S}ystem ({ROMS}) is carried out to assess the role of the detachment of the {G}uinea {C}urrent as a potential mechanism for coastal upwelling. {T}his idealized experiment is performed by canceling the inertia terms responsible for the advection of momentum in the equations and comparing with a realistic experiment. {T}he results exhibit two major differences. {F}irst, the {G}uinea {C}urrent is found to be highly sensitive to inertia, as it is no longer detached from the coast in the idealized experiment. {T}he {G}uinea {C}urrent adjusts on an inertial boundary layer, the inertial terms defining its lateral extension. {S}econd, the upwelling east of {C}ape {P}almas disappears in absence of the {G}uinea {C}urrent detachment. {T}his is in contrast with the upwelling east of {C}ape {T}hree {P}oints, which is still present. {T}he results suggest that two different generation processes of the coastal upwelling need to be considered: the upwelling east of {C}ape {P}almas (which is due to inertia, topographic variations, and advective terms effects resulting in important vertical pumping) and the upwelling east of {C}ape {T}hree {P}oints (which is principally induced by local winds). {I}n addition to recent work ruling out the role of eddies, this study clarifies the processes responsible for this coastal upwelling.},
  keywords = {{UPWELLING} ; {COURANT} {COTIER} ; {PRODUCTION} {PRIMAIRE} ; {CIRCULATION} {OCEANIQUE} ; {VARIATION} {SAISONNIERE} ; {MODELISATION} ; {ATLANTIQUE} ; {GOLFE} {DE} {GUINEE} ; {ZONE} {TROPICALE} ; {COTE} {D}'{IVOIRE}},
  booktitle = {},
  journal = {{J}ournal of {P}hysical {O}ceanography},
  volume = {47},
  numero = {6},
  pages = {1367--1387},
  ISSN = {0022-3670},
  year = {2017},
  DOI = {10.1175/{JPO}-{D}-16-0126.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070175},
}