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Description
From January 1 to March 1, 2020, this dataset contains Next Generation Weather Radar (NEXRAD) Level II surveillance data collected at 31 sites during the IMPACTS field campaign. It provides dual-polarization base data quantities, including radar reflectivity, radial velocity, and differential reflectivity, to study snowstorms over the U.S. Atlantic Coast. The data is part of a three-year campaign to improve the understanding and prediction of snowband formation and microphysics.
Use Cases
Analyzing snowband formation and evolution based on radar reflectivity and velocity data.
Studying snow particle microphysics and growth mechanisms using dual-polarization variables like differential reflectivity.
Improving numerical weather prediction models for snowfall by assimilating high-resolution NEXRAD Level II observations.
Validating remote sensing algorithms for winter precipitation using a multi-site radar dataset.
Strengths
Data originates from 31 operational NEXRAD radar sites, providing wide spatial coverage.
Contains detailed dual-polarization base data quantities, which are critical for advanced meteorological analysis.
Covers a defined, intensive observation period (two months) during a targeted field campaign.
Limitations
Key metadata such as row count, file size, and specific column names are not provided across sources.
Sources conflict on the 'last updated' date (2020-03-01 vs. 2026-04-10), creating uncertainty about data currency.
The license is ambiguously listed as 'other-license-specified' without explicit terms.
Provenance
Source
National Aeronautics and Space Administration
Collection Method
Collected via Weather Surveillance Radar-1988 Doppler (WSR-88D) / NEXRAD sites during the IMPACTS field campaign.
Time Range
January 1, 2020 to March 1, 2020
Freshness
2026-04-10 01:58:41.315585
Geography
United States Atlantic Coast, from 31 NEXRAD sites
License is listed as 'other-license-specified'; users must verify specific terms. Data is in netCDF-4 format and is noted to be updated in subsequent years of the IMPACTS campaign.