GPM GROUND VALIDATION DUAL POLARIZATION RADIOMETER GCPEX V1

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.

Data and Resources

Additional Info

Field Value
Maintainer undefined
Last Updated March 31, 2025, 20:53 (UTC)
Created March 31, 2025, 20:53 (UTC)
accessLevel public
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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/
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harvest_source_title DNG Legacy Data
identifier C1979693621-GHRC_DAAC
issued 2014-03-18
landingPage https://doi.org/10.5067/GPMGV/GCPEX/RADIOMETER/DATA102
language {en-US}
metadata_type geospatial
modified 2022-05-10
programCode {026:001}
publisher NASA/MSFC/GHRC
resource-type Dataset
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source_schema_version 1.1
spatial -79.92 44.11 -79.6 44.35
temporal 2011-11-23T00:00:00Z/2012-03-01T23:59:59Z
theme {GCPEx,geospatial}