GHRSST Level 3U Global Subskin Sea Surface Temperature version7.0.1a from the WindSat Polarimetric Radiometer on the Coriolis satellite

GHRSST Level 3U Global Subskin Sea Surface Temperature version7.0.1a from the WindSat Polarimetric Radiometer on the Coriolis satellite
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Short NameWindSat-REMSS-L3U-v7.0.1a
DescriptionThe WindSat Polarimetric Radiometer, launched on January 6, 2003 aboard the Department of Defense Coriolis satellite, was designed to measure the ocean surface wind vector from space. It developed by the Naval Research Laboratory (NRL) Remote Sensing Division and the Naval Center for Space Technology for the U.S. Navy and the National Polar-orbiting Operational Environmental Satellite System (NPOESS) Integrated Program Office (IPO). In addition to wind speed and direction, the instrument can also measure sea surface temperature, soil moisture, ice and snow characteristics, water vapor, cloud liquid water, and rain rate. Unlike previous radiometers, the WindSat sensor takes observations during both the forward and aft looking scans. This makes the WindSat geometry of the earth view swath quite different and significantly more complicated to work with than the other passive microwave sensors. The Remote Sensing Systems (RSS, or REMSS) WindSat products are the only dataset available that uses both the fore and aft look directions. By using both directions, a wider swath and more complicated swath geometry is obtained. RSS providers of these SST data for the Group for High Resolution Sea Surface Temperature (GHRSST) Project, performs a detailed processing of WindSat instrument data in two stages. The first stage produces a near-real-time (NRT) product (identified by "rt" within the file name) which is made as available as soon as possible. This is generally within 3 hours of when the data are recorded. Although suitable for many timely uses the NRT products are not intended to be archive quality. "Final" data (currently identified by "v7.0.1a" within the file name) are processed when RSS receives the atmospheric mode NCEP FNL analysis. The NCEP wind directions are particularly useful for retrieving more accurate SSTs and wind speeds. The final "v7.0.1a" products will continue to accumulate new swaths (half orbits) until the maps are full, generally within 7 days. The version with letter "a" refers to the file incompliance with GHRSST format.
Dataset TypeOPEN
MeasurementOCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE > Sub-skin Sea Surface Temperature
Processing Level3U
CoverageRegion: Global
Northernmost Latitude: 39.01 degrees
Southernmost Latitude: -39.06 degrees
Westernmost Longitude: -179.99 degrees
Easternmost Longitude: 180 degrees
Time Span: 2002-Jun-01 to Present
ResolutionSpatial Resolution: degrees (Latitude) x degrees (Longitude)
Temporal Resolution:
ProjectionType: Satellite native swath
Detail: Geolocation information included for each pixel
Ellipsoid: none
Latency6 hours
Name: Coriolis (CORIOLIS)
Orbit Period: 101.6 minutes
Inclination Angle: 98.7 degrees
Ascending Node: 2010-Sep-26 13:30:00
Name: WindSat (WINDSAT)
Swath Width: 1200 km
Description: WindSat is a microwave polarimetric radiometer designed with the capability of retrieving ocean surface wind vectors using three fully polarimetric feed horns at 10.7, 18.7, and 37.0 GHz. With 2 additional dual-polarized (i.e., not fully polarimetric) radiometer bands and a total of 22 descrete micrwave channels, WindSat can also retrieve sea surface temperature, rain rate, water vaper, and cloud liquid water.

ProjectGroup for High Resolution Sea Surface Temperature (GHRSST)
Data ProviderCreator: Remote Sensing Systems
Release Place: Santa Rosa, CA, USA
Release Date: 2017-Dec-15
Keyword(s)GHRSST, sea surface temperature, L2P, SST, surface temperature, WSAT, GDS2, RSS, REMSS
Questions related to this dataset? Contact
User's Guide
GDS2 User Manual
Documentation on the GDS version 2 format specification
REMSS SST Infomation
WindSat SSTs: algorithm description, browsing of data, and ftp of data
Project Materials
WindSat SST Calibration
WindSat calibration description
Additional Sites
GHRSST Project Homepage
Citation Remote Sensing Systems. 2017. GHRSST Level 3U Global Subskin Sea Surface Temperature version7.0.1a from the WindSat Polarimetric Radiometer on the Coriolis satellite. Ver. 7.0.1a. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at

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