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RSS SMAP Sea Surface Salinity Analysis

| DOI: 10.5065/5KAN-C040

The Soil Moisture Active Passive (SMAP) satellite Sea Surface Salinity (SSS) V3.0 validated data are available from Remote Sensing Systems. The near-polar orbit of SMAP allows for complete global coverage of the oceans in 3 days with a repeat cycle of 8 days. Only Level-3 products of the SMAP SSS V3.0 validated release are archived in this dataset:

  • 8-day running averages
  • monthly averages
  • monthly (RF) rain-filtered averages
All products are provided at two spatial resolutions: 40km and 70km. For most open ocean applications, the 70km products are the best to use as they have significantly lower noise. All files are in NetCDF 4 format and are CF/ACDD compliant.

Temporal Range:
2015-03-31 12:00 +0000 to 2022-07-07 12:00 +0000
Salinity Surface Salinity
Vertical Levels:
See the detailed metadata for level information.
Data Types:
Spatial Coverage:
Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=90S Northernmost=90N Detailed coverage information
Data Contributors:
Remote Sensing Systems
Thomas Meissne, Frank J. Wentz and David M. Le Vine, 2018: The Salinity Retrieval Algorithms for the NASA Aquarius Version 5 and SMAP Version 3 Releases Remote Sensing, 10(7), 1-25 (DOI: 10.3390/rs10071121).

Total Volume:
32.67 GB (Entire dataset) Volume details by dataset product
Data Formats:
More Details:
View a more detailed summary of the data, including specific date ranges and locations by parameter
Metadata Record:
Data License:
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