NOAA OSPO VIIRS L2P and L3U GHRSST upgraded to version 2.41

Monday, October 9, 2017

The PO.DAAC is pleased to announce the release of the version 2.41 VIIRS-NPP Level-2P/3U  Sea Surface Temperature (SST) datasets produced by the NOAA Office of Satellite and Product Operations (OSPO).  This release is an upgrade from the current version 2.40, which ended on Sept. 15th, 2017.  The changes made in the upgrade include adapting spatial smoothing of the differential atmospheric correction, using “standard deviation (SD) of Baseline SST minus in situ SST” over “SD of Piecewise Regression (PWR) SST minus in situ SST”, and improving the ACSPO clear-sky mask (ACSM) performance in the twilight zones. Both datasets (L2P/L3U) are in compliance with the Group for High Resolution Sea Surface Temperature (GHRSST) Data Processing Specification version 2 (GDS2) and contains daily global coverage with 750 m spatial resolution for L2P and 2 km spatial resolution for L3U SST. More information on the new dataset can be found here: https://www.star.nesdis.noaa.gov/sod/sst/squam/HR/index.html.

PO.DAAC dataset information  pages can be found here:

  1. https://podaac.jpl.nasa.gov/dataset/VIIRS_NPP-OSPO-L3U-v2.41
  2. https://podaac.jpl.nasa.gov/dataset/VIIRS_NPP-OSPO-L2P-v2.41

Data and metadata access for L2P SST is through FTP, OPeNDAP and Web Services at locations such as:

  1. ftp://podaac-ftp.jpl.nasa.gov/allData/ghrsst/data/GDS2/L2P/VIIRS_NPP/OSPO/v2.41
  2. https://podaac-opendap.jpl.nasa.gov/opendap/allData/ghrsst/data/GDS2/L2P/VIIRS_NPP/OSPO/v2.41/
  3. https://podaac.jpl.nasa.gov/ws/search/granule/?datasetId=PODAAC-GHVRS-2PO41

Data and metadata access for L3U SST is through FTP, OPeNDAP, THREDDS and Web Services at locations such as:

  1. ftp://podaac-ftp.jpl.nasa.gov/allData/ghrsst/data/GDS2/L3U/VIIRS_NPP/OSPO/v2.41
  2. https://podaac-opendap.jpl.nasa.gov/opendap/allData/ghrsst/data/GDS2/L3U/VIIRS_NPP/OSPO/v2.41/
  3. https://thredds.jpl.nasa.gov/thredds/catalog_ghrsst_gds2.html?dataset=VIIRS_NPP-OSPO-L3U-v2.41
  4. https://podaac.jpl.nasa.gov/ws/search/granule/?datasetId=PODAAC-GHVRS-3UO24

The GDS2 specification document can be found here:
ftp://podaac.jpl.nasa.gov/OceanTemperature/ghrsst/docs/GDS20r5.pdf
 
More information on the GHRSST project can be found here:
https://ghrsst.org
http://ghrsst.jpl.nasa.gov
https://www.nodc.noaa.gov/SatelliteData/ghrsst/