@article{fdi:010083809,
  title = {{S}atellite-based sea surface salinity designed for ocean and climate studies},
  author = {{B}outin, {J}. and {R}eul, {N}. and {K}oehler, {J}. and {M}artin, {A}. and {C}atany, {R}. and {G}uimbard, {S}. and {R}ouffi, {F}. and {V}ergely, {J}. {L}. and {A}rias, {M}. and {C}hakroun, {M}. and {C}orato, {G}. and {E}stella-{P}erez, {V}. and {H}asson, {A}. and {J}osey, {S}. and {K}hvorostyanov, {D}. and {K}olodziejczyk, {N}. and {M}ignot, {J}uliette and {O}livier, {L}. and {R}everdin, {G}. and {S}tammer, {D}. and {S}upply, {A}. and {T}houvenin-{M}asson, {C}. and {T}uriel, {A}. and {V}ialard, {J}{\'e}r{\^o}me and {C}ipollini, {P}. and {D}onlon, {C}. and {S}abia, {R}. and {M}ecklenburg, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ea {S}urface {S}alinity ({SSS}) is an increasingly used {E}ssential {O}cean and {C}limate {V}ariable. {T}he {S}oil {M}oisture and {O}cean {S}alinity ({SMOS}), {A}quarius, and {S}oil {M}oisture {A}ctive {P}assive ({SMAP}) satellite missions all provide {SSS} measurements, with very different instrumental features leading to specific measurement characteristics. {T}he {C}limate {C}hange {I}nitiative {S}alinity project ({CCI} + {SSS}) aims to produce a {SSS} {C}limate {D}ata {R}ecord ({CDR}) that addresses well-established user needs based on those satellite measurements. {T}o generate a homogeneous {CDR}, instrumental differences are carefully adjusted based on in-depth analysis of the measurements themselves, together with some limited use of independent reference data. {A}n optimal interpolation in the time domain without temporal relaxation to reference data or spatial smoothing is applied. {T}his allows preserving the original datasets variability. {SSS} {CCI} fields are well suited for monitoring weekly to interannual signals, at spatial scales ranging from 50 km to the basin scale. {T}hey display large year-to-year seasonal variations over the 2010-2019 decade, sometimes by more than +/- 0.4 over large regions. {T}he robust standard deviation of the monthly {CCI} {SSS} minus in situ {A}rgo salinities is 0.15 globally, while it is at least 0.20 with individual satellite {SSS} fields. r(2) is 0.97, similar or better than with original datasets. {T}he correlation with independent ship thermosalinographs {SSS} further highlights the {CCI} data set excellent performance, especially near land areas. {D}uring the {SMOS}-{A}quarius period, when the representativity uncertainties are the largest, r(2) is 0.84 with {CCI} while it is 0.48 with the {A}quarius original data set. {SSS} {CCI} data are freely available and will be updated and extended as more satellite data become available.},
  keywords = {climate ; ocean ; salinity ; satellite},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {126},
  numero = {11},
  pages = {e2021{JC}017676 [28 ]},
  ISSN = {2169-9275},
  year = {2021},
  DOI = {10.1029/2021jc017676},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083809},
}