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    • GPM GROUND VALIDATION DUAL POLARIZATION RADIOMETER GCPEX V1

    Metadata Updated: December 6, 2023

    The GPM Ground Validation Dual Polarization Radiometer GCPEx dataset includes brightness temperature measurements at frequencies 90 GHz (not polarized) and 150 GHz (HV-polarized) for the GPM Cold-season Precipitation Experiment (GCPEx) which occurred in Ontario, Canada. GCPEx addressed shortcomings in the GPM snowfall retrieval algorithm by collecting microphysical properties, associated remote sensing observations, and coordinated model simulations of precipitating snow. This dual polarization radiometer (DPR) is sensitive to particle orientation since it observes the brightness temperature difference between the vertical and horizontal polarization channels at 150 GHz, and it is especially important for the retrievals of particle shape and orientation with polarization observations. DPR also has a high sensitivity to the supercooled liquid water in clouds due to the high-frequency window channels. Even though the netCDF data has regular scans, the browse images are only shown at 30 and 150 degrees. Ancillary data was also captured for the internal calibration of the instrument.

    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 December 1, 2022
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    N/A

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023
    Publisher NASA/MSFC/GHRC
    Maintainer
    Identifier C1979693621-GHRC_DAAC
    Data First Published 2014-03-18
    Language en-US
    Data Last Modified 2022-05-10
    Category GCPEx, 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 Loehnert, Ulrich and Maximillian Maahan.2014. GPM GROUND VALIDATION DUAL POLARIZATION RADIOMETER GCPEX indicate subset used. Dataset available online from the NASA Global Hydrometeorology Resource Center DAAC, Huntsville, Alabama, U.S.A. DOI: http://dx.doi.org/10.5067/GPMGV/GCPEX/RADIOMETER/DATA102
    Graphic Preview Description N/A
    Graphic Preview File https://ghrc.nsstc.nasa.gov/pub/fieldCampaigns/gpmValidation/gcpex/radiometer_dual_pol/browse/
    Harvest Object Id 3f90c0ff-5a0e-4f3d-a46d-9204dfc19dae
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/GPMGV/GCPEX/RADIOMETER/DATA102
    Metadata Type geospatial
    Old Spatial -79.92 44.11 -79.6 44.35
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash e3996538eec0596961ac2d0f259065cf8be15b120baa5f0ee160e7b249fb3ebd
    Source Schema Version 1.1
    Spatial
    Temporal 2011-11-23T00:00:00Z/2012-03-01T23:59:59Z

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