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Dataset Overview | National Centers for Environmental Information (NCEI)

GHRSST Level 3U OSPO dataset v2.61 from VIIRS on NOAA-20 Satellite (GDS v2) for 2020-05-23 (NCEI Accession 0242471)

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NOAA-20 (hereafter, N20; also known as JPSS-1 or J1 prior to launch) is the second satellite in the US National Oceanic and Atmospheric Administration (NOAA) latest generation Joint Polar Satellite System (JPSS). N20 was launched on November 18, 2017. In conjunction with the first US satellite in JPSS series, Suomi National Polar-orbiting Partnership (S-NPP) satellite launched on October 28, 2011, N20 form the new NOAA polar constellation. The ACSPO N20/VIIRS L3U (Level 3 Uncollated) product is a gridded version of the ACSPO N20/VIIRS L2P product. The L3U output files are 10-minute granules in netCDF4 format, compliant with the GHRSST Data Specification version 2 (GDS2). There are 144 granules per 24hr interval, with a total data volume of 500MB/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, ACSPO clear-sky mask (ACSM; provided in each grid as part of l2p_flags, which also includes day/night, land, ice, twilight, and glint flags), NCEP wind speed, and ACSPO SST minus reference (Canadian Met Centre 0.1deg L4 SST). 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 (Xu and Ignatov, 2014) in SQUAM (Dash et al, 2010).
  • Cite as: Ma, Liqun; NOAA Office of Satellite and Product Operations (2021). GHRSST Level 3U OSPO dataset v2.61 from VIIRS on NOAA-20 Satellite (GDS v2) for 2020-05-23 (NCEI Accession 0242471). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0242471. Accessed [date].
gov.noaa.nodc:0242471
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Distribution Formats
  • Originator data format
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2020-05-23 to 2020-05-23
Spatial Bounding Box Coordinates
West: -180
East: 180
South: -90
North: 90
Spatial Coverage Map
General Documentation
Associated Resources
  • GHRSST Level 3U NOAA STAR SST v2.80 from VIIRS on NOAA-20 Satellite (GDS version 2)
    • Parent ID (indicates this dataset is related to other data):
    • gov.noaa.nodc:GHRSST-VIIRS_N20-OSPO-L3U
Publication Dates
  • publication: 2021-10-28
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
Descriptive information for this dataset was provided by the GDAC collection search service at https://podaac.jpl.nasa.gov/ws/metadata/dataset?format=iso&itemsPerPage=1&shortName=VIIRS_N20-OSPO-L3U-v2.61.
Purpose This dataset is available to the public for a wide variety of uses including scientific research and analysis.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Ma, Liqun; NOAA Office of Satellite and Product Operations (2021). GHRSST Level 3U OSPO dataset v2.61 from VIIRS on NOAA-20 Satellite (GDS v2) for 2020-05-23 (NCEI Accession 0242471). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0242471. Accessed [date].
Cited Authors
Contributors
Resource Providers
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
Project keywords NODC PROJECT NAMES THESAURUS Global Change Master Directory (GCMD) Project Keywords
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Ma, Liqun; NOAA Office of Satellite and Product Operations (2021). GHRSST Level 3U OSPO dataset v2.61 from VIIRS on NOAA-20 Satellite (GDS v2) for 2020-05-23 (NCEI Accession 0242471). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0242471. Accessed [date].
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2021-10-28T08:39:54Z - NCEI Accession 0242471 v1.1 was published.
Output Datasets
Acquisition Information (collection)
Instrument
  • VIIRS
Platform
  • NOAA-20 (JPSS-1)
Last Modified: 2021-11-09T16:31:41Z
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