GPM GROUND VALIDATION DUAL-FREQUENCY DUAL-POLARIZED DOPPLER RADAR (D3R) IFLOODS V1

The GPM Ground Validation Dual-frequency Dual-polarized Doppler Radar (D3R) IFloodS dataset contains radar reflectivity and doppler velocity measurements from the Iowa Flood Studies (IFloodS) campaign. This campaign aimed to improve satellite precipitation measurements for flood prediction by using ground measurements to improve satellite retrieval algorithms. The D3R was developed by a government-industry-academic consortium with funding from NASA's Global Precipitation Measurement (GPM) Project. It operates at the ku (13.91 GHz ± 25 MHz) and ka (35.56 GHz ± 25 MHz) frequencies covering a fixed range from 450 m to 39.75 km. The D3R IFloodS dataset is available from May 9, 2013 through June 13, 2013 in netCDF-3 format with corresponding browse imagery available in PNG format.

Data and Resources

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IFloodS Field Campaign Collection DOI
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Realization of the NASA Dual-Frequency Dual-Polarized Doppler Radar (D3R)
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Scientific and engineering overview of the NASA Dual-Frequency Dual-Polarized...
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A Semisupervised Robust Hydrometeor Classification Method for Dual-...
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IFloodS Field Campaign Project Homepage
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Instructions for citing GHRC data
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Additional Info

Field	Value
Maintainer	undefined
Last Updated	July 17, 2025, 17:03 (UTC)
Created	March 31, 2025, 23:52 (UTC)
accessLevel	public
bureauCode	{026:00}
catalog_@context	https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id	https://data.nasa.gov/data.json
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy	https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation	Chandrasekar, V. .2014. GPM GROUND VALIDATION DUAL-FREQUENCY DUAL-POLARIZED DOPPLER RADAR (D3R) IFLOODS [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/IFLOODS/D3R/DATA101
graphic-preview-description	Browse images illustrate the nature and coverage of the data
graphic-preview-file	https://ghrc.nsstc.nasa.gov/pub/fieldCampaigns/gpmValidation/ifloods/D3R/browse/
harvest_object_id	af158f60-071a-442c-b371-f56185e158a6
harvest_source_id	61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title	DNG Legacy Data
identifier	C1981441257-GHRC_DAAC
issued	2014-02-17
landingPage	https://doi.org/10.5067/GPMGV/IFLOODS/D3R/DATA101
language	{en-US}
metadata_type	geospatial
modified	2022-05-09
programCode	{026:001}
publisher	NASA/MSFC/GHRC
resource-type	Dataset
source_datajson_identifier	true
source_hash	0a5e2769425bc3508ce081bcde47ecc28c1e60f1b1ec39ff358e3227eb9d2786
source_schema_version	1.1
spatial	-92.9 42.0 -90.1 42.5
temporal	2013-05-09T02:59:31Z/2013-06-13T23:59:59Z
theme	{IFloodS,geospatial}