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Multi-Mission Optimally Interpolated Sea Surface Salinity Global Monthly Dataset V1

Published by NASA/JPL/PODAAC;UHI/SOEST/IPRC | National Aeronautics and Space Administration | Catalog Last Checked: May 18, 2026 at 03:20 PM | Dataset Last Updated: May 11, 2026
This is a level 4 product on a 0.25-degree spatial and monthly temporal grid. The product is the monthly mean of the level 4 OISSS dataset using three satellite missions: the Aquarius/SAC-D, Soil Moisture Active Passive (SMAP) and Soil Moisture and Ocean Salinity (SMOS) using Optimal Interpolation (OI) with a 7-day decorrelation time scale. This dataset is produced by the International Pacific Research Center (IPRC) of the University of Hawaii at Manoa in collaboration with the Remote Sensing Systems (RSS), Santa Rosa, California. More details can be found in the users guide and Addendum I to the product Technical Notes.

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