@article{fdi:010087561,
  title = {{I}mpact of synoptic wind intensification and relaxation on the dynamics and heat budget of the {S}outh {S}enegalese upwelling sector},
  author = {{C}habert, {P}. and {C}apet, {X}. and {E}chevin, {V}incent and {L}azar, {A}. and {H}ourdin, {C}. and {N}doye, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n addition to their well-known seasonal cycle, eastern boundary upwelling systems ({EBUS}) undergo mod-ulation on shorter synoptic to intraseasonal time scales. {E}nergetic intensifications and relaxations of upwelling-favorable winds with 5-10-day typical time scales can impact the {EBUS} dynamics and biogeochemical functioning. {I}n this work the dynamical effects of wind-forced synoptic fluctuations on the {S}outh {S}enegalese {U}pwelling {S}ector ({SSUS}) are characterized. {T}he region geomorphology is unique with its wide continental shelf and a major coastline discontinuity at its northern edge. {T}he ocean response to synoptic events is explored using a modeling framework that involves applying idealized syn-optic wind intensification or relaxation to a five-member climatological {SSUS} ensemble run. {M}odel evaluation against sparse midshelf in situ observations indicates qualitative agreement in terms of synoptic variability of temperature, stratifi-cation, and ocean currents, despite a moderate but systematic bias in current intensity. {M}odeled synoptic wind and heat flux fluctuations produce clear modulations of all dynamical variables with robust {SSUS}-scale and mesoscale spatial pat-terns. {A} mixed layer heat budget analysis is performed over the continental shelf to uncover the dominant processes in-volved in {SSUS} synoptic variability. {M}odulations of horizontal advection and atmospheric forcing are the leading-order drivers of heat changes during either wind intensification or relaxation while vertical dynamics is of primary importance only in a very localized area. {A}lso, modest asymmetries in the oceanic responses to upwelling intensification and relaxation are only identified for meridional velocities. {T}his brings partial support to the hypothesis that synoptic variability has a modest net effect on the climatological state and functioning of upwelling systems dynamics.},
  keywords = {{E}ddies ; {O}ceanic mixed layer ; {S}ynoptic-scale processes ; {O}cean models ; {SENEGAL} ; {ATLANTIQUE}},
  booktitle = {},
  journal = {{J}ournal of {P}hysical {O}ceanography},
  volume = {53},
  numero = {4},
  pages = {1041--1067},
  ISSN = {0022-3670},
  year = {2023},
  DOI = {10.1175/jpo-d-22-0092.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087561},
}