Satellite Salinity Data Available from SMAP
[18-Nov-16] The Physical Oceanography Distributed Active Archive Center (PO.DAAC) is pleased to announce the availability of the version 2.0 SMAP Sea Surface Salinity (SSS) data from Remote Sensing Systems
. This builds upon the legacy of the Aquarius/SAC mission and the official NASA salinity retrieval algorithm applied now to observations from the Soil Moisture Active Passive (SMAP) mission. Data begin April 1, 2015 and are ongoing, with a one-month latency in processing and data availability.
Data sets comprising this release include the Level 2C orbital data and two Level 3 mapped salinity products: an 8-day running mean product based on the repeat orbit of the SMAP mission, along with a monthly average product. Both are global in extent and provided at a 0.25° x 0.25° grid. The spatial resolution of all three products is approximately at 40 km. All three products are in the netCDF4 file format, and the L3 products are CF/ACDD metadata standards compliant.
The SMAP-SSS V2.0 data sets are described and discoverable via the PO.DAAC data portal
. Access to these data is via PO.DAAC's public FTP site
. The data are also accessible via a range of PO.DAAC tools and services: OPeNDAP
and in the near future, LAS
The SMAP Algorithm Theoretical Basis Document (ATBD), validation analysis and file specification document together with other primary technical documentation
, are available from the FTP site together with reader software
. General information regarding the SMAP mission is available from the mission website
and also via PO.DAAC's SMAP
Should you have any questions, please contact us at: firstname.lastname@example.org.
Image: SMAP sea surface salinity data acquired June 12, 2015. Data were processed by Remote Sensing Systems using an 8-day running average and 0.25 degree grid.
Global map of sea surface salinity