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    • TRMM Ground Validation Rain Gauge Rain Rate L2 1 month V7 (TRMM_2A56) at GES DISC

    Metadata Updated: December 7, 2023

    The program rgmin generates 1-minute hourly rain rates from discrete tipping bucket rain gauge data by applying an interpolation algorithm. The interpolating routine is based on the cubic spline routine published in the book "Numerical Recipes". The mathematical theory underlying this algorithm is presented in section 3.3 of the book along with a copy of the source code. The mathematics involved will not be described in any detail, rather the spline will be described in context with its application to the broader algorithm being applied in rgmin.

    A key component of the TRMM project is the Ground Validation (GV) effort which consists of collecting data from ground-based radar, rain gauges and disdrometers. The data is quality-controlled, and then validation products are produced for comparison with TRMM satellite products.

    The four primary GV sites are:

    • Darwin, Australia;
    • Houston, Texas;
    • Kwajalein, Republic of the Marshall Islands;
    • Melbourne, Florida.

    A significant effort is also being supported at NASA Wallops Flight Facility (WFF) and vicinity to provide high quality, long-term measurements of rain rates (via a network of rain gauges collocated with National Weather Service gauges), as well as drop size distributions (DSD) using a variety of instruments, including impact-type Joss Waldvogel, laser-optical Parsivel, as well as two-dimensional video disdrometers. DSD measurements are also being collected at Melbourne and Kwajalein using Joss-Waldvogel disdrometers.

    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 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Graphic Preview

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 7, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C1332654213-GES_DISC
    Data First Published 2011-07-01
    Language en-US
    Data Last Modified 2016-05-09
    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). 2007-01-01. TRMM_2A56. TRMM Ground Validation Rain Gauge Rain Rate L2 1 month V7. Greenbelt, MD. 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/TRMM_2A56_7.html.
    Creator Tropical Rainfall Measuring Mission (TRMM)
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/browse/TRMM.logo.PNG
    Harvest Object Id 676c1b92-8da7-4c63-966e-43213cbfd6e0
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://cmr.earthdata.nasa.gov:443/search/concepts/C1332654213-GES_DISC.html
    Metadata Type geospatial
    Old Spatial -180.0 -40.0 180.0 40.0
    Program Code 026:001
    Release Place Greenbelt, MD
    Series Name TRMM_2A56
    Source Datajson Identifier True
    Source Hash 4139da40c3de3ce6839987880a1aa7efabe9e1e6e2d957ab441013e888afa324
    Source Schema Version 1.1
    Spatial
    Temporal 1995-01-03T00:00:00Z/2016-07-31T23:59:59.999Z

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