Science Meetings

Comparison of Level-2 Aquarius SSS With Argo Near-Surface Salinity
Ren, L. and Bayler, E. (11-Nov-14)

Comparing sea-surface salinity (SSS) observations from the U.S. National Aeronautics and Space Agency's (NASA) Aquarius mission and in-situ Argo float data at global, zonal and regional scales reveals interesting and unexpected insights on data quality and uncertainty. The Aquarius official data (Aquarius Data Processing System (ADPS)) Version 3.0 and NASA Jet Propulsion Laboratory's (JET PROPULSION LABORATORY) Combined Active-Passive (CAP) Version 3.0 were compared in this study. For the ADPS data, differences between Aquarius' ascending and descending nodes are also analyzed. Regional comparisons are used to examine dominant underlying influences, in particular SSS biases/differences resulting from precipitation, sea-surface temperature (SST) and wind speed (surface roughness).