RSS SMAP Sea Surface Salinity Analysis 

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.

To Access Resource:

Questions? Email Resource Support Contact:

  • datahelp@ucar.edu

Temporal Range

  • Begin:  2015-03-31T1200+00
    End:  2025-10-19T1200+00

Keywords

Resource Type dataset
Temporal Range Begin 2015-03-31T1200+00
Temporal Range End 2025-10-19T1200+00
Temporal Resolution N/A
Bounding Box North Lat 90.0
Bounding Box South Lat -90.0
Bounding Box West Long -180.0
Bounding Box East Long 180.0
Spatial Representation grid
Spatial Resolution 0.25 degree
Related Links

Related Resource #1 : SMAP Salinity V3 Validated Release
Additional Information N/A
Resource Format NetCDF4
Standardized Resource Format NetCDF
Asset Size 221381.945 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author Remote Sensing Systems
Publisher NSF National Center for Atmospheric Research
Publication Date 2019-01-23
Digital Object Identifier (DOI) https://doi.org/10.5065/5KAN-C040
Alternate Identifier d285005
Resource Version N/A
Topic Category oceans
Progress onGoing
Metadata Date 2025-10-31T13:05:04Z
Metadata Record Identifier edu.ucar.gdex::d285005
Metadata Language eng; USA
Suggested Citation Remote Sensing Systems. (2019). RSS SMAP Sea Surface Salinity Analysis. NSF National Center for Atmospheric Research. https://doi.org/10.5065/5KAN-C040. Accessed 31 October 2025.

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