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    • GHRSST Level 3U NOAA STAR SST v2.80 from VIIRS on S-NPP Satellite

    Metadata Updated: December 6, 2023

    The Joint Polar Satellite System (JPSS), starting with S-NPP launched on 28 October 2011, is the new generation of the US Polar Operational Environmental Satellites (POES). The ACSPO SNPP/VIIRS L3U (Level 3 Uncollated) product is a gridded version of the ACSPO NPP/VIIRS L2P product available here https://podaac.jpl.nasa.gov/dataset/VIIRS_NPP-STAR-L2P-v2.80 . The L3U output files are 10-minute granules in netCDF4 format, compliant with the Group for High Resolution Sea Surface Temperature (GHRSST) Data Specification version 2 (GDS2). There are 144 granules per 24hr interval, with a total data volume of 0.5GB/day. Fill values are reported at all invalid pixels, including pixels with >5 km inland. For each valid water pixel (defined as ocean, sea, lake or river, and up to 5 km inland), the following layers are reported: SSTs, a subset of l2p_flags (including day/night, land, ice, twilight, and glint flags), wind speed, and ACSPO SST minus reference (Canadian Met Centre 0.1deg L4 SST; available at https://www.doi.org/10.5067/GHCMC-4FM03). Only L2P SSTs with QL=5 were gridded, so all valid SSTs are recommended for the users. Per GDS2 specifications, two additional Sensor-Specific Error Statistics layers (SSES bias and standard deviation) are reported in each pixel with valid SST. The ACSPO VIIRS L3U product is monitored and validated against iQuam in situ data in SQUAM. The v2.80 is an updated version from the v2.61 with several L2P algorithm improvements including two added thermal front layers, mitigated warm biases in the high latitudes, and improved clear-sky mask.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    References

    https://doi.org/10.1002/2013JD020637
    https://doi.org/10.1175/2010JTECHA1413.1

    Dates

    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Thumbnail

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023
    Publisher NASA/JPL/PODAAC
    Maintainer
    Identifier C2147485059-POCLOUD
    Data First Published 2019-03-07
    Language en-US
    Data Last Modified 2019-03-07
    Category GHRSST, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation NOAA/NESDIS/STAR. 2021-11-25. GHRSST Level 3U SST v2.80 dataset from VIIRS on S-NPP Satellite. Version 2.80. GHRSST Level 3U NOAA/NESDIS/STAR SST from VIIRS on S-NPP Satellite. Suitland, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, PO.DAAC. https://doi.org/10.5067/GHVRS-3UO28. https://www.star.nesdis.noaa.gov/star/index.php.
    Creator NOAA/NESDIS/STAR
    Graphic Preview Description Thumbnail
    Graphic Preview File https://podaac.jpl.nasa.gov/Podaac/thumbnails/VIIRS_NPP-STAR-L3U-v2.80.jpg
    Harvest Object Id 7d06bc42-9285-4a7e-8b2b-45d59afe545b
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/GHVRS-3UO28
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Related Documents https://doi.org/10.1002/2013JD020637, https://doi.org/10.1175/2010JTECHA1413.1
    Release Place Suitland, MD, USA
    Series Name GHRSST Level 3U SST v2.80 dataset from VIIRS on S-NPP Satellite
    Source Datajson Identifier True
    Source Hash 7e3d1edf76db8a1c9dd9b3891492e3ece373081f7d5bb29dec928191f28f2931
    Source Schema Version 1.1
    Spatial
    Temporal 2012-02-01T00:00:00Z/2023-03-01T00:00:00Z

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