@article{fdi:010064865,
  title = {{O}n the seasonal variations of salinity of the tropical {A}tlantic mixed layer},
  author = {{C}amara, {I}. and {K}olodziejczyk, {N}. and {M}ignot, {J}uliette and {L}azar, {A}lban and {G}aye, {A}. {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he physical processes controlling the mixed layer salinity ({MLS}) seasonal budget in the tropical {A}tlantic {O}cean are investigated using a regional configuration of an ocean general circulation model. {T}he analysis reveals that the {MLS} cycle is generally weak in comparison of individual physical processes entering in the budget because of strong compensation. {I}n evaporative regions, around the surface salinity maxima, the ocean acts to freshen the mixed layer against the action of evaporation. {P}oleward of the southern {SSS} maxima, the freshening is ensured by geostrophic advection, the vertical salinity diffusion and, during winter, a dominant contribution of the convective entrainment. {O}n the equatorward flanks of the {SSS} maxima, {E}kman transport mainly contributes to supply freshwater from {ITCZ} regions while vertical salinity diffusion adds on the effect of evaporation. {A}ll these terms are phase locked through the effect of the wind. {U}nder the seasonal march of the {ITCZ} and in coastal areas affected by river (7 degrees {S}:15 degrees {N}), the upper ocean freshening by precipitations and/or runoff is attenuated by vertical salinity diffusion. {I}n the eastern equatorial regions, seasonal cycle of wind forced surface currents advect freshwaters, which are mixed with subsurface saline water because of the strong vertical turbulent diffusion. {I}n all these regions, the vertical diffusion presents an important contribution to the {MLS} budget by providing, in general, an upwelling flux of salinity. {I}t is generally due to vertical salinity gradient and mixing due to winds. {F}urthermore, in the equator where the vertical shear, associated to surface horizontal currents, is developed, the diffusion depends also on the sheared flow stability.},
  keywords = {salinity ; seasonal variation ; tropical {A}tlantic ; vertical mixing ; {ATLANTIQUE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch. {O}ceans},
  volume = {120},
  numero = {6},
  pages = {4441--4462},
  ISSN = {2169-9275},
  year = {2015},
  DOI = {10.1002/2015jc010865},
  URL = {https://www.documentation.ird.fr/hor/fdi:010064865},
}