@article{fdi:010069335,
  title = {{I}mportance of the {E}quatorial {U}ndercurrent on the sea surface salinity in the eastern equatorial {A}tlantic in boreal spring},
  author = {{D}a-{A}llada, {C}. {Y}. and {J}ouanno, {J}ulien and {G}aillard, {F}. and {K}olodziejczyk, {N}. and {M}aes, {C}hristophe and {R}eul, {N}. and {B}ourl{\`e}s, {B}ernard},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he physical processes implied in the sea surface salinity ({SSS}) increase in the equatorial {A}tlantic {C}old {T}ongue ({ACT}) region during boreal spring and the lag observed between boreal spring {SSS} maximum and sea surface temperature ({SST}) summer minimum are examined using mixed-layer salinity budgets computed from observations and model during the period 2010-2012. {T}he boreal spring {SSS} maximum is mainly explained by an upward flux of high salinity originating from the core of the {E}quatorial {U}ndercurrent ({EUC}) through vertical mixing and advection. {T}he vertical mixing contribution to the mixed-layer salt budget peaks in {A}pril-{M}ay. {I}t is controlled primarily by (i) an increased zonal shear between the surface {S}outh {E}quatorial {C}urrent and the subsurface {EUC} and (ii) the presence of a strong salinity stratification at the mixed-layer base from {D}ecember to {M}ay. {T}his haline stratification that is due to both high precipitations below the {I}nter {T}ropical {C}onvergence {Z}one and zonal advection of low-salinity water from the {G}ulf of {G}uinea explains largely the seasonal cycle of the vertical advection contribution to the mixed-layer salt budget. {I}n the {ACT} region, the {SST} reaches its maximum in {M}arch/{A}pril and minimum in {J}uly/{A}ugust. {T}his {SST} minimum appears 1 month after the maximum of {SSS}. {T}he 1 month lag observed between the maximum of {SSS} in {J}une and the minimum of {SST} in {J}uly is explained by the shallowing of the {EUC} salinity core in {J}une, then the weakening/erosion of the {EUC} in {J}une-{J}uly which dramatically reduces the lateral subsurface supply of high-saline waters.},
  keywords = {{A}tlantic {C}old {T}ongue ; {SMOS} {SSS} ; model ; {EUC} salinity maximum ; vertical ; processes ; {ATLANTIQUE} ; {ZONE} {TROPICALE} ; {GOLFE} {DE} {GUINEE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {122},
  numero = {1},
  pages = {521--538},
  ISSN = {2169-9275},
  year = {2017},
  DOI = {10.1002/2016jc012342},
  URL = {https://www.documentation.ird.fr/hor/fdi:010069335},
}