GridRad - Three-Dimensional Gridded NEXRAD WSR-88D Radar Data

The GridRad data set consists of radar reflectivity data and radar coverage information from 125 U.S. NEXRAD WSR-88D radars merged onto a regular, three-dimensional, longitude-latitude-altitude grid at hourly analysis intervals. Each analysis uses all available radar azimuth scans within a specified time window centered on the analysis time. The size of the time window is given in the files as a global attribute. The data include weighted average radar reflectivity from multiple observations, averaging weights, number of azimuth scans (elevation angles) observing each volume, and the number of azimuth scans (elevation angles) with echo in each volume. Following conventional nomenclature, the NEXRAD volume scan files are referred to as Level 2 data, while this gridded data are referred to as Level 3 data.Additional information is available at GridRad.org.

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Temporal Range

  • Begin:  1995-01-01T0000+00
    End:  2017-12-31T2300+00

Keywords

Resource Type dataset
Temporal Range Begin 1995-01-01T0000+00
Temporal Range End 2017-12-31T2300+00
Temporal Resolution N/A
Bounding Box North Lat 49.0
Bounding Box South Lat 25.0
Bounding Box West Long -115.0
Bounding Box East Long -69.0
Spatial Representation grid
Spatial Resolution 0.02 degree
Related Links

Related Resource #1 : The home site of GridRad data with additional information
Additional Information N/A
Resource Format NetCDF4
Standardized Resource Format NetCDF
Asset Size 4654574.487 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author Bowman, Kenneth P.
Homeyer, Cameron R.
Publisher NSF National Center for Atmospheric Research
Publication Date 2017-07-12
Digital Object Identifier (DOI) https://doi.org/10.5065/D6NK3CR7
Alternate Identifier d841000
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress onGoing
Metadata Date 2025-10-09T01:18:54Z
Metadata Record Identifier edu.ucar.gdex::d841000
Metadata Language eng; USA
Suggested Citation Bowman, Kenneth P., Homeyer, Cameron R.. (2017). GridRad - Three-Dimensional Gridded NEXRAD WSR-88D Radar Data. NSF National Center for Atmospheric Research. https://doi.org/10.5065/D6NK3CR7. Accessed 10 October 2025.

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