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    • GPM PR on TRMM Precipitation Statistics, at Surface and Fixed Heights 1 day 0.25x0.25 degree V07 (GPM_3PRD) at GES DISC

    Metadata Updated: December 6, 2023

    This a new (GPM-formated) TRMM product. There is no equivalent in the old TRMM suite of products.

    Version 07 is the current version of the data set. Older versions will no longer be available and have been superseded by Version 07.

    This is the GPM-like formatted TRMM Precipitation Radar (PR) daily gridded data, first released with the "V8" TRMM reprocessing. The daily radar grid data is new for TRMM nomenclature and is introduced for consistency with the GPM Dual-frequency Precipitation Radar (DPR). The closest ancestor was 3A25 which was a monthly radar statistics.

    This product consists of daily statistics of the PR measurements at (0.25x0.25) degrees horizontal resolution.

    The objective of the algorithm is to calculate various daily statistics from the level 2 PR output products. Four types of statistics are calculated: 1. Probabilities of occurrence (count values) 2. Means and standard deviations In all cases, the statistics are conditioned on the presence of rain or some other quantity such as the presence of stratiform rain or the presence of a bright-band. For example, to compute the unconditioned mean rain rate, the conditional mean must be multiplied by the probability of rain which, in turn is calculated from the ratio of rain counts to the total number of observations in the box of interest.

    The grids are in the Planetary Grid 2 structure matching the Dual-frequency PR on the core GPM observatory that covers 67S to 67N degrees of latitudes. Areas beyond the ±40 degrees of latitudes are padded with empty grid cells.

    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 30, 2022
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Graphic Preview

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 30, 2022
    Metadata Updated Date December 6, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C2264132424-GES_DISC
    Data First Published 2021-07-21
    Language en-US
    Data Last Modified 2021-07-21
    Category TRMM, 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 Tropical Rainfall Measuring Mission (TRMM). 2021-07-29. GPM_3PRD. GPM PR on TRMM Precipitation Statistics, at Surface and Fixed Heights 1 day 0.25x0.25 degree V07. Greenbelt, MD. 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/PR/TRMM/3A-DAY/07. https://disc.gsfc.nasa.gov/datacollection/GPM_3PRD_07.html. Digital Science Data.
    Creator Tropical Rainfall Measuring Mission (TRMM)
    Data Presentation Form Digital Science Data
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/browse/GPM_3PRD.png
    Harvest Object Id 7a987405-143b-429d-b2bb-92aa49029278
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/GPM/PR/TRMM/3A-DAY/07
    Metadata Type geospatial
    Old Spatial -180.0 -67.0 180.0 67.0
    Program Code 026:001
    Release Place Greenbelt, MD
    Series Name GPM_3PRD
    Source Datajson Identifier True
    Source Hash 8b7265173409629a668c238ee38d3c2dd432762b70dcf3f97574786235ae4de1
    Source Schema Version 1.1
    Spatial
    Temporal 1997-12-07T00:00:00Z/2015-04-30T23:59:59.999Z

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