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GPM Ground Validation Dual-frequency Dual-polarized Doppler Radar (D3R) OLYMPEX V1
Entry ID: gpmd3rolyx_1

Abstract: The GPM Ground Validation OLYMPEX Dual-frequency Dual-polarized Doppler Radar (D3R) dataset contains radar reflectivity and doppler velocity measurements. The D3R was developed by a government-industry-academic consortium with funding from NASA’s Global Precipitation Measurement (GPM) Project and was used in several ground validation projects. D3R operates at the Ku band (13.91 GHz ± 25 MHz) and Ka band (35.56 GHz ± 25 MHz) frequencies, like those on GPM satellite instruments, covering a fixed range from 450 m to 40 km. For OLYMPEX, the D3R was collocated with the NPOL radar at a coastal Washington state location on the Olympic Peninsula. Due to blockage caused by NPOL, the measurement sector is limited to a 220 deg to 120 deg sector.
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Geographic Coverage
Spatial coordinates   
  N: 47.63   S: 46.92   E: -123.69   W: -124.74

Data Set Citation
Version: 1
Other Citation Details: Chandrasekar, V. and Manuel Vega.2017. GPM Ground Validation Dual-frequency Dual-polarized Doppler Radar (D3R) OLYMPEX [indicate subset used]. Dataset available online from the NASA Global Hydrology Resource Center DAAC, Huntsville, Alabama, U.S.A. DOI:
Temporal Coverage
Start Date: 2015-11-08
Stop Date: 2016-01-15
Data Resolution
Temporal Resolution: Daily - < Weekly
Access Constraints This product has full public access.
Data Set Progress
Distribution Format: netCDF-4/CF
Fees: 0.0
Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2018-10-26

Link to NASA website
Responsible NASA Official:   Stephen Berrick
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