This image shows global sea surface salinity (SSS) derived from data collected by the Soil Moisture Active Passive (SMAP) satellite. In this 8-day composite image, areas of higher salinity are shown in yellow and red; areas with lower salinity are shown in blue/light blue.
Access to the dataset can be obtained by visiting: https://podaac.jpl.nasa.gov/dataset/SMAP_JPL_L3_SSS_CAP_8DAY-RUNNINGMEAN_V4
Using SMAP Data for Deriving Ocean Salinity
Researchers at NASA's Jet Propulsion Laboratory (JPL) created this SSS product from SMAP data using the Combined Active-Passive (CAP) retrieval algorithm. CAP was originally developed for retrieval of remotely-sensed salinity during the Aquarius/SAC-D mission (operational 2011-2015).