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    • SIRS/Nimbus-4 Level 1 Radiance Data V001 (SIRSN4L1) at GES DISC

    Metadata Updated: December 6, 2023

    SIRSN4L1 is the Nimbus-4 Satellite Infrared Spectrometer (SIRS) Level 1 Radiance Data product. SIRS measured infrared radiation (11 to 36 micrometers) emitted from the earth and its atmosphere in 13 selected spectral intervals in the carbon dioxide and water vapor bands plus one channel in the 11-micrometer atmospheric window. The radiances were used to determine the vertical temperature and water vapor profiles of the atmosphere. The data were recovered from the original 6250 tapes, and are now stored online as daily files in their original proprietary binary format each with about 14 orbits per day.

    The Nimbus-4 SIRS used a scan mirror to observe 12.5 deg to either side of the subsatellite track. Spatial coverage is near global from latitude -85 to +85 degrees. The data are available from 08 April 1970 (day of year 98) to 08 April 1971. The principal investigator for the SIRS experiment was Dr. David Q. Wark from the NOAA National Environmental Satellite Data and Information Service.

    This product was previously available from the NSSDC with the identifier ESAD-00130 (old ID 70-025A-04A).

    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

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Typical data coverage of a Nimbus 4 SIRS Level 1 data file.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 6, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C1622768259-GES_DISC
    Data First Published 2013-04-29
    Language en-US
    Data Last Modified 2019-02-04
    Category Nimbus, 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 NASA/GSFC. 2019-07-02. SIRSN4L1. Version 001. SIRS/Nimbus-4 Level 1 Radiance Data V001. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://disc.gsfc.nasa.gov/datacollection/SIRSN4L1_001.html. Digital Science Data.
    Creator NASA/GSFC
    Data Presentation Form Digital Science Data
    Graphic Preview Description Typical data coverage of a Nimbus 4 SIRS Level 1 data file.
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Nimbus/images/SIRSN4L1_Sample.png
    Harvest Object Id dd0d599c-8830-438d-a0ad-84d9b05a951e
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://cmr.earthdata.nasa.gov:443/search/concepts/C1622768259-GES_DISC.html
    Metadata Type geospatial
    Old Spatial -180.0 -85.0 180.0 85.0
    Program Code 026:001
    Release Place Greenbelt, MD, USA
    Series Name SIRSN4L1
    Source Datajson Identifier True
    Source Hash c1dccff02c01c025d06d60c69298df851f30832f08c2c05ea54cab2741da74c8
    Source Schema Version 1.1
    Spatial
    Temporal 1970-04-08T00:00:00Z/1971-04-08T23:59:59.999Z

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