KBGM NEXRAD IMPACTS V1

The KBGM NEXRAD IMPACTS dataset consists of Next Generation Weather Radar (NEXRAD) Level II surveillance data that were collected from January 1 to March 1, 2020 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. 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. There are currently 160 Weather Surveillance Radar-1988 Doppler (WSR-88D) or NEXRAD sites throughout the United States and abroad. These Level II datasets contain meteorological and dual-polarization base data quantities including: radar reflectivity, radial velocity, spectrum width, differential reflectivity, differential phase, and cross correlation ratio. The IMPACTS NEXRAD Level II data files are available in netCDF-4 format. It should be noted that this dataset will be updated in subsequent years of the IMPACTS campaign.

Data and Resources

Additional Info

Field	Value
Maintainer	Earthdata Forum
Last Updated	November 5, 2026, 05:53 (UTC)
Created	April 1, 2025, 16:47 (UTC)
Identifier	10.5067/IMPACTS/NEXRAD/DATA102
Modified	2026-11-02T22:15:57Z
Theme	{"Earth Science"}
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	32bc4705-5f88-492b-b76e-8d1271ca4482
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
license	https://www.usa.gov/government-works
programCode	{026:000}
publisher	NASA/MSFC/GHRC
resource-type	Dataset
source_datajson_identifier	true
source_hash	594e6f4e1d411bc4289b5ef8a5a6fc9c1f3305a27598520b903e03f928124798
source_schema_version	1.1
spatial	["CARTESIAN", [{"WestBoundingCoordinate": -81.5637, "NorthBoundingCoordinate": 46.3296, "EastBoundingCoordinate": -70.4058, "SouthBoundingCoordinate": 38.0698}]]
temporal	2020-01-01/2020-03-01