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    • GPM ATMS on NOAA-21 (GPROF) Radiometer Precipitation Profiling L2A 1.5 hours 17 km V07 (GPM_2AGPROFNOAA21ATMS) at GES DISC

    Metadata Updated: December 6, 2023

    Version 07 is the current version of the data set.

    The 2AGPROF (also known as, GPM GPROF (Level 2)) algorithm retrieves consistent precipitation and related science fields from the following GMI and partner passive microwave sensors: GMI, SSMI (DMSP F15), SSMIS (DMSP F16, F17, F18) AMSR2 (GCOM-W1), TMI MHS (NOAA 18&19, METOP A&B), ATMS (SNPP and NOAA-21). This provides the bulk of the 3-hour coverage achieved by GPM. For each sensor, there are near-realtime (NRT) products, standard products, and climate products. These differ only in the amount of data that are available within 3 hours, 48 hours, and 3 months of collection, as well as the ancillary data used. The NRT product uses GANAL forecast fields. Standard products use the GANAL analysis product, while the climate product uses ECMWF reanalysis in order to allow for consistent data records with earlier missions. These earlier data may be archived separately. The main strength of the product is the large sampling provided. The GPM radiometer algorithms are Bayesian-type algorithms. These algorithms search an a-priori database of potential rain profiles and retrieve a weighted average of these entries based upon the proximity of the observed brightness temperature (Tb) to the simulated Tb corresponding to each rain profile. By using the same a-priori database of rain profiles, with appropriate simulated Tb for each constellation sensor, the Bayesian method is completely parametric and thus well suited for GPM's constellation approach. The a-priori information will be supplied by the combined algorithm supplied by GPM's core satellite as soon after launch as feasible. Databases for V0 of the algorithm had to be constructed from various sources as described in the ATBD. The solution provides a mean rain rate as well as the vertical structure of cloud and precipitation hydrometeors and their uncertainty.

    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 June 27, 2023
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Surface Precipitation from GPM ATMS on NOAA-21 GPROF (17 km x 17 km) (GPM_2AGPROFNOAA21ATMS)

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 27, 2023
    Metadata Updated Date December 6, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C2712827634-GES_DISC
    Data First Published 2023-05-30
    Language en-US
    Data Last Modified 2023-05-30
    Category GPM, 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 GPM Science Team. 2023-05-30. GPM_2AGPROFNOAA21ATMS. Version 07. GPM ATMS on NOAA-21 (GPROF) Radiometer Precipitation Profiling L2A 1.5 hours 17 km V07. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/GPM/ATMS/NOAA21/GPROF/2A/07. https://disc.gsfc.nasa.gov/datacollection/GPM_2AGPROFNOAA21ATMS_07.html. Digital Science Data.
    Creator GPM Science Team
    Data Presentation Form Digital Science Data
    Graphic Preview Description Surface Precipitation from GPM ATMS on NOAA-21 GPROF (17 km x 17 km) (GPM_2AGPROFNOAA21ATMS)
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/browse/GPM_2AGPROFNOAA21ATMS_07.png
    Harvest Object Id dc90599a-c61e-4e61-a9a4-11ceed7ccb99
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/GPM/ATMS/NOAA21/GPROF/2A/07
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Release Place Greenbelt, MD, USA
    Series Name GPM_2AGPROFNOAA21ATMS
    Source Datajson Identifier True
    Source Hash b416ff9a20f0827105a95190e82f76490390ad956c1dc74a1790c5bd6da40a70
    Source Schema Version 1.1
    Spatial
    Temporal 2023-02-01T00:00:00Z/2023-06-26T00:00:00Z

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