NEXRAD IMPACTS Snowstorm Radar Data from 31 Sites

Radar data from 31 NEXRAD sites was collected from January 1 to March 1, 2020 for the IMPACTS field campaign, a three-year study of Atlantic Coast snowstorms. The dataset contains Level II meteorological and dual-polarization base data quantities. It is managed by the GHRC DAAC and is available in netCDF-4 format.

Use Cases

• Analyzing radar reflectivity and differential reflectivity to study snowband organization and evolution.
• Using radial velocity and spectrum width data to examine wind patterns within winter storms.
• Applying differential phase and cross correlation ratio measurements to improve snowfall remote sensing interpretation.
• Validating and improving numerical weather prediction models for snowstorms using multi-site radar observations.

Strengths

• Data originates from 31 NEXRAD sites, providing multi-site coverage for storm analysis.
• Contains six dual-polarization base data quantities, including differential reflectivity and phase.
• Part of a planned three-year field campaign, indicating a structured scientific effort.

Limitations

• Specific row count, file size, and exact column names are not provided by any source.
• Sources conflict on the last updated date, reporting both 2020-03-01 and 2026-03-13.

Provenance

Source

GHRC_DAAC

Collection Method

Collected from Next Generation Weather Radar (NEXRAD) Level II surveillance systems at 31 sites.

Time Range

2020-01-01 to 2020-03-01

Freshness

2026-03-13 01:28:29.123373

Geography

31 NEXRAD sites, primarily focused on the U.S. Atlantic Coast region.