@article{fdi:010082292,
  title = {{G}lobal analysis of coastal gradients of sea surface salinity},
  author = {{D}ossa, {A}. {N}. and {A}lory, {G}. and da {S}ilva, {A}. {C}. and {D}ahunsi, {A}. {M}. and {B}ertrand, {A}rnaud},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ea surface salinity ({SSS}) is a key variable for ocean-atmosphere interactions and the water cycle. {D}ue to its climatic importance, increasing efforts have been made for its global in situ observation, and dedicated satellite missions have been launched more recently to allow homogeneous coverage at higher resolution. {C}ross-shore {SSS} gradients can bear the signature of different coastal processes such as river plumes, upwelling or boundary currents, as we illustrate in a few regions. {H}owever, satellites performances are questionable in coastal regions. {H}ere, we assess the skill of four gridded products derived from the {S}oil {M}oisture {O}cean {S}alinity ({SMOS}) and {S}oil {M}oisture {A}ctive {P}assive ({SMAP}) satellites and the {GLORYS} global model reanalysis at capturing cross-shore {SSS} gradients in coastal bands up to 300 km wide. {T}hese products are compared with thermosalinography ({TSG}) measurements, which provide continuous data from the open ocean to the coast along ship tracks. {T}he comparison shows various skills from one product to the other, decreasing as the coast gets closer. {T}he bias in reproducing coastal {SSS} gradients is unrelated to how the {SSS} biases evolve with the distance to the coast. {D}espite limited skill, satellite products generally agree better with collocated {TSG} data than a global reanalysis and show a large range of coastal {SSS} gradients with different signs. {M}oreover, satellites reveal a global dominance of coastal freshening, primarily related to river runoff over shelves. {T}his work shows a great potential of {SSS} remote sensing to monitor coastal processes, which would, however, require a jump in the resolution of future {SSS} satellite missions to be fully exploited.},
  keywords = {{SSS} ; thermosalinograph ; {SMOS} ; {SMAP} ; {GLORYS} ; {A}mazon {R}iver plume ; northeast {B}razil ; {B}ay of {B}engal ; {C}alifornia {C}urrent system ; {G}reat {A}ustralian {B}ight ; {ATLANTIQUE} ; {BRESIL} {NORDESTE} ; {OCEAN} {INDIEN} ; {PACIFIQUE} ; {OCEAN} {INDIEN} ; {AMAZONE} {COURS} {D}'{EAU} ; {BENGALE} {GOLFE} ; {CALIFORNIE} {COURANT} ; {AUSTRALIENNE} {GRANDE} {BAIE}},
  booktitle = {},
  journal = {{R}emote {S}ensing},
  volume = {13},
  numero = {13},
  pages = {2507 [23 ]},
  year = {2021},
  DOI = {10.3390/rs13132507},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082292},
}