SBU Micro Rain Radar 2 (MRR2) IMPACTS

The SBU Micro Rain Radar 2 (MRR-2) IMPACTS dataset consists of reflectivity, Doppler velocity, signal-to-noise ratio, spectral width, droplet size, Liquid Water Content, melting layer, drop size distribution, rain attenuation, rain rate, and radial velocity data collected during the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) field campaign. IMPACTS was a three-year sequence of winter season deployments conducted to study snowstorms over the U.S. Atlantic Coast (2020-2023). The campaign aimed to (1) Provide observations critical to understanding the mechanisms of snowband formation, organization, and evolution; (2) Examine how the microphysical characteristics and likely growth mechanisms of snow particles vary across snowbands; and (3) Improve snowfall remote sensing interpretation and modeling to significantly advance prediction capabilities. Both the MRR-2 and the MRR-PRO instruments were used to collect data for this dataset. The dataset files are available from January 1, 2020 through March 2, 2023 in netCDF-3 and netCDF-4/CF formats.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 23, 2026, 02:04 (UTC)
Created April 1, 2025, 18:48 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 072d52a7-a7ee-4bf8-ab02-0aadaff36c03
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/IMPACTS/MRR/DATA101
license https://www.usa.gov/government-works
modified 2026-06-15T22:16:02Z
programCode {026:000}
publisher NASA/MSFC/GHRC
resource-type Dataset
source_datajson_identifier true
source_hash 2c46af9e6d81d2b882899cc573ae3189bd827acef6c65053cc9d33d3d7b67070
source_schema_version 1.1
spatial ["CARTESIAN", [{"NorthBoundingCoordinate": 40.975, "WestBoundingCoordinate": -74.0168, "EastBoundingCoordinate": -72.864, "SouthBoundingCoordinate": 40.7182}]]
temporal 2020-01-01/2023-03-02
theme {"Earth Science"}