GPM GROUND VALIDATION NASA MICRO RAIN RADAR (MRR) GCPEX

The GPM Ground Validation NASA Micro Rain Radar (MRR) GCPEx dataset was collected by a Micro Rain Radar (MRR), which is a vertically pointing Doppler radar which provides measurements of vertical velocity, drop size distribution, rainfall rate, attenuation, liquid water content, and reflectivity factor obtained during the GPM Cold-season Precipitation Experiment (GCPEx), which took place in Canada during Winter 2011-2012. GCPEx addressed shortcomings in the GPM snowfall retrieval algorithm by collecting microphysical properties, associated remote sensing observations, and coordinated model simulations of precipitating snow. The MRR is a frequency-modulated continuous wave (FMCW) vertically pointing Doppler radar, which operates at 24.24GHz, and it is the second generation of the instrument manufactured by METEK (http://metek.de/product/mrr-2/). NASA MRR data was collected from late October 2011 through March 2013. Version 2 of the dataset became active on 13-May-2015.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 15, 2026, 02:35 (UTC)
Created April 1, 2025, 16:20 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 24498c5a-2f05-4ff9-b522-648f3f817a32
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/GPMGV/GCPEX/MRR/DATA204
license https://www.usa.gov/government-works
modified 2026-09-07T22:16:01Z
programCode {026:000}
publisher NASA/MSFC/GHRC
resource-type Dataset
source_datajson_identifier true
source_hash 538c7eef6526fb28f40986afe47499de7d09a19adcd3e63e85f6a199e4992611
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -79.7814, "NorthBoundingCoordinate": 44.2336, "EastBoundingCoordinate": -79.7175, "SouthBoundingCoordinate": 44.1806}]]
temporal 2011-10-24/2012-03-13
theme {"Earth Science"}