At the SMOS-Aquarius science workshop during 15-17 April 2013 in Brest/France, the Satellite & In Situ Salinity (SISS) Working Group (WG) was established.

The major goal of this WG is to improve our understanding of the link between L-band satellite (SMOS and Aquarius) remotely sensed salinity (for approximately the top 1 cm of the sea surface) and in situ measured salinity (routinely measured at a few meters depths by ships and ARGO floats but recently accessible to up to few cm depth by new profilers, and by surface drifters ...) and to develop practical methodologies for relating satellite salinity to other estimates of sea surface salinity.

Questions that this WG should particularly address are:

  • What is the salinity stratification in the first 10m below the sea surface and its relation with the atmospheric forcing including wind and rain? Under what circumstances (particular atmospheric conditions and/or geographical regions) are the new satellite SSS able to provide a new reliable information on SSS within the first cm complementary to existing deeper in situ information for studying air-sea exchange processes? In case of a rain event, what is the magnitude of and could we correct for other effects than salinity affecting L-band radiometric measurements (roughness, atmosphere)?
  • What is the magnitude of SSS variability within satellite footprint (SMOS (40 km) and Aquarius (50-150 km)); how can we take it into account in in-situ-satellite SSS comparisons?
  • Which kind of experimental/numerical experiences could be envisaged for studying processes at play & answering above questions?


  SISS white paper [pdf]Bulletin of the American Meteorological Society, vol. 91 No. 8, 1391—1407, doi:10.1175/BAMS-D-15-00032.1.


Specific charges for the WG: see charges.pdf

Co-Chairs: This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.