@inproceedings{fdi:010078259,
  title = {{S}ea {S}urface {S}alinity signature of the tropical {A}tlantic interannual climatic modes [r{\'e}sum{\'e} de poster]},
  author = {{A}wo, {F}.{M}. and {A}lory, {G}. and {D}a {A}llada, {Y}{\'e}logniss{\'e} {C}asimir and {D}elcroix, {T}hierry and {J}ouanno, {J}ulien and {B}alo{\¨ie}tcha, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} consistent {S}ea {S}urface {S}alinity ({SSS}) signature of the tropical {A}tlantic meridional and equatorial interannual modes is extracted from in situ observations and a regional numerical simulation, by a statistical analysis on the 1980-2012 period. {O}ceanic and/or atmospheric processes responsible for the signature of each mode are identified through a mixed-layer salt budget in the validated model. {T}he meridional mode is associated in spring with a meridional {SSS} dipole in the equatorial band, due to changes in fresh water flux related to a meridional shift of the {I}nter-{T}ropical {C}onvergence {Z}one ({ITCZ}). {I}t is also associated with large {SSS} anomalies in the north and south west tropical {A}tlantic, due to advection of relatively fresh equatorial waters by strengthened western boundary currents, and off the {C}ongo {R}iver where both meridional and vertical advection are involved. {T}he equatorial mode is associated in summer with 3 zonal bands of alternating {SSS} anomalies between 5°{S} and 10°{N}. {T}he southernmost band is due to vertical advection and diffusion at the mixed layer base, the two others to a shift of the {ITCZ}-related rainfall maximum, with additional contribution of meridional advection in the northernmost band. {T}he equatorial mode also leads to large {SSS} anomalies in the {N}orth {B}razil {C}urrent retroflection region, mainly due to horizontal advection of equatorial {SSS} anomalies. {T}he {SSS} signatures of the meridional and equatorial modes are well captured by the {SMOS} satellite during particular events.},
  keywords = {{AFRIQUE} {CENTRALE} ; {ATLANTIQUE}},
  numero = {},
  pages = {78},
  booktitle = {{I}nternational conference {ICAWA} 2017 and 2018 : extended book of abstract : the {AWA} project : ecosystem approach to the management of fisheries and the marine environment in {W}est {A}frican waters},
  year = {2019},
  ISBN = {978-9553602-0-06},
  URL = {https://www.documentation.ird.fr/hor/fdi:010078259},
}