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GHRSST Level 2P Gridded Global Subskin Sea Surface Temperature from WindSat polarimetric radiometer on the Coriolis satellite
Entry ID: REMSS-L2P_GRIDDED_25-WSAT

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Summary
Abstract: This dataset contains sea surface temperature derived from observations made by the WindSat Polarimetric Radiometer developed by the Naval Research Laboratory (NRL) and launched on 6 January 2003 aboard the Department of Defense Coriolis satellite. This radiometer is well-calibrated and contains the lower frequency channels required for SST retrievals. The radiometer operates in 5 discrete bands: 6.8, 10.7, 18.7, 23.8 and 37.0 GHz. The 10.7, 18.7 and 37.0 GHz bands are fully polarimetric whereas the 6.8 and 23.8 GHz bands have only dual polarization. The feedhorns of each frequency band trace out different arcs along the bench, therefore the Earth Incidence Angles (EIA) are different for each frequency band. 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 than the other passive microwave sensors. The Remote Sensing Systems (RSS, or REMSS) WindSat dataset is the only one available that uses both the fore and aft look directions which results in a wider swath and more complicated swath geometry visible in the provided maps. RSS produces these SST data for the Group for High Resolution Sea Surface Temperature (GHRSST) Project. In the data processing chain, a first stage produces a near-real-time (NRT) dataset (identified with a "rt" within the file name) which is made as available as soon as possible. A later second stage produces a final dataset (identified by "v7" within the file name) that contains more data than the NRT version. In this dataset, both ascending (evening time) and descending (morning time) gridded orbital passes are packaged into the same daily file.
Although the product designation is "L2P_GRIDDED" it is in actuality a Level 3 Collated (L3C) product as defined in the GHRSST Data Processing Specification (GDS) version 2.0. Its "L2P_GRIDDED" name derives from a deprecated specification in the early Pilot Project phase of GHRSST (pre 2008) and has remained for file naming continuity.

Related URL
Link: GET DATA > THREDDS DIRECTORY
Description: Data may be directly downloaded from the NODC via the THREDDS (Thematic Real-time Environmental Distributed Data Services) server at the URL listed in this metadata record. For more information see the NODC GHRSST project web site: URL: http://ghrsst.nodc.noaa.gov/


Link: GET DATA > OPENDAP DIRECTORY (DODS)
Description: These data are also served using OPeNDAP (formerly DODS) server. The base URL is: http://data.nodc.noaa.gov/opendap/ghrsst/. For more information see the NODC GHRSST project web site: URL:http://ghrsst.nodc.noaa.gov/. For a listing of OPeNDAP clients which may be used to access OPeNDAP-enabled data sets, please see the OPeNDAP web site at URL: http://opendap.org/


Link: GET DATA
Description: Direct FTP access: Navigate to ftp://ftp.nodc.noaa.gov/pub/data.nodc/ghrsst using any FTP client to begin downloading data. For more information see the NODC GHRSST project web site: URL: http://ghrsst.nodc.noaa.gov/


Link: GET DATA
Description: Simple Web access: Using any web browser, navigate to URL: http://data.nodc.noaa.gov/ghrsst and begin browsing through the file hierarchy. Clicking on any of the files will prompt you to download that file or will launch any application associated with netCDF files. For more information see the NODC GHRSST project web site: URL: http://ghrsst.nodc.noaa.gov/


Link: GET DATA
Description: Data may be directly downloaded through the NODC Ocean Archive System at: URL: http://www.nodc.noaa.gov/Archive/Search/. NODC can be contacted directly for custom orders. (When requesting data from the NODC, a data set may be referred to by a 7-digit accession number assigned to individual data sets, see the NODC Ocean Archive System at http://www.nodc.noaa.gov/Archive/Search/.) For more information see the NODC GHRSST project web site: URL: http://ghrsst.nodc.noaa.gov/


Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0
 Min Altitude: 0  Max Altitude: 0  Min Depth: 0  Max Depth: 0

Data Set Citation
Dataset Originator/Creator: Remote Sensing Systems
Dataset Title: WindSat Coriolus L3 gridded SST data set
Dataset Series Name: WindSat Coriolus SST
Dataset Release Date: 2011-12-16
Dataset Release Place: Santa Rosa, CA, USA
Dataset Publisher: Remote Sensing Systems
Version: 7.0
Other Citation Details: Windsat SST from Remote Sensing Systems
Online Resource: http://www.remss.com/windsat


Temporal Coverage
Start Date: 2003-02-09


Location Keywords
GEOGRAPHIC REGION > GLOBAL


Data Resolution
Latitude Resolution: 0.25
Longitude Resolution: 0.25
Temporal Resolution: 12 hours


Science Keywords
OCEANS >OCEAN TEMPERATURE >SEA SURFACE TEMPERATURE >SUB-SKIN SEA SURFACE TEMPERATURE    [Definition]


ISO Topic Category
OCEANS
GEOSCIENTIFIC INFORMATION


Platform
CORIOLIS >Coriolis    [Information]


Instrument
WINDSAT    [Information]


Project
GHRSST >Group for High Resolution Sea Surface Temperature    [Information]
CWIC >CEOS WGISS Integrated Catalog    [Information]


Access Constraints
None


Use Constraints
None


Keywords
WindSat
Earth Science
Oceans
Ocean Temperature
Sea Surface Temperature
satellite data
TRMM SATELLITE
Group for High Resolution Sea Surface Temperature
Remote Sensing Systems
US NATIONAL AERONAUTIC AND SPACE ADMINISTRATION; JET PROPULSION LABORATORY Physical
Oceanography Distributed Active Archive Center
climatologyMeteorologyAtmosphere
environment
biota
Global


Originating Center
Remote Sensing Systems


Data Center
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce    [Information]
Data Center URL: https://ncei.noaa.gov/

Data Center Personnel
Name: NOAA NCEI
Email: ncei.info at noaa.gov


Remote Sensing Systems    [Information]
Data Center URL: http://www.remss.com/
Dataset ID: WSAT-REMSS-L2P_GRIDDED_25

Data Center Personnel
Name: SHARON TREMBLE
Phone: 001 707 545 2904
Fax: 001 707 545 2906
Email: tremble at remss.com


Personnel
KENNETH S. CASEY
Role: TECHNICAL CONTACT
Phone: (301) 713-3272 x133
Fax: FAX: (301) 713-3300
Email: Kenneth.Casey at noaa.gov
Contact Address:
NOAA National Oceanographic Data Center SSMC3, 4th Floor, Room 4853, Route: E/OC1 1315 East-West Highway
City: Silver Spring
Province or State: Maryland
Postal Code: 20910
Country: U.S.A.


SHARON TREMBLE
Role: TECHNICAL CONTACT
Phone: 001 707 545 2904
Fax: 001 707 545 2906
Email: tremble at remss.com


Publications/References

Creation and Review Dates
DIF Creation Date: 2012-11-01
Last DIF Revision Date: 2016-11-18



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