@article{fdi:010063133,
  title = {{C}oastally trapped eddies in the north of the {G}ulf of {G}uinea},
  author = {{D}jakour{\'e}, {S}andrine and {P}enven, {P}ierrick and {B}ourl{\`e}s, {B}ernard and {V}eitch, {J}. and {K}on{\'e}, {V}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}yclonic eddies generated downstream of {C}ape {P}almas and {C}ape {T}hree points have been suggested to contribute to the coastal upwelling along the northern coast of the {G}ulf of {G}uinea. {A} numerical analysis using a high-resolution model is used to investigate the mesoscale activity and the coastal upwelling generation processes. {A}n eddy detection and tracking tool is applied to altimeter and model data, showing good agreement between these data sets. {A}bout two cyclonic eddies per year with an average radius of 60 km were identified downstream of both capes. {T}hese cyclonic eddies have an average lifetime of about 60 days during the major coastal upwelling period (boreal summer) and an eastward propagation. {T}hese cyclonic eddies are shallow, energetic (their relative vorticity can reach 3 times the earth's rotation), and dimensionless parameters show that they are in an eddy shedding regime. {M}ean flow interactions and barotropic instabilities associated with capes are their main generation processes. {A}n idealized experiment is conducted in order to analyze the effect of capes on eddy generation and on coastal upwelling. {I}t reveals that these cyclonic eddies generated downstream of capes are not the process responsible for this coastal upwelling. {T}his experiment also suggests that the cyclonic eddies are the cause of the westward and coastal {G}uinea {C}ounter {C}urrent that is associated with a transfer of energy from eddy kinetic to the mean flow.},
  keywords = {modeling ; eddies ; coastal upwelling ; {G}ulf of {G}uinea ; {GOLFE} {DE} {GUINEE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {119},
  numero = {10},
  pages = {6805--6819},
  ISSN = {2169-9275},
  year = {2014},
  DOI = {10.1002/2014jc010243},
  URL = {https://www.documentation.ird.fr/hor/fdi:010063133},
}