Manually-Digitized Radar Data for the Conterminous United States

The former Techniques Development Laboratory (TDL) of the U.S. National Weather Service began collecting Manually-Digitized Radar (MDR) data in November 1973 from teletype reports for the eastern two-thirds of the United States. In 1978, TDL began archiving the MDR on a new grid aligned with the output grid of the Limited Fine Mesh (LFM) model, which was the model used for numerical weather prediction at the time. The new MDR archive covered the entire conterminous United States. As with the old MDR data, the new data were archived in Model Output Statistics (MOS) predictand format to support thunderstorm prediction. In addition to the "raw" MDR data, TDL also created a gridded 20-nautical-mile-resolution MDR product.

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Temporal Range

  • Begin:  1978-03-02T0000+00
    End:  1994-12-31T2200+00

Keywords

Resource Type dataset
Temporal Range Begin 1978-03-02T0000+00
Temporal Range End 1994-12-31T2200+00
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format NCEP ON84
Standardized Resource Format OTHER
Asset Size 8725.57 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 Foster, Donald S.
Reap, Ronald M.
Publisher NSF National Center for Atmospheric Research
Publication Date 1983-07-11
Digital Object Identifier (DOI) https://doi.org/10.5065/FFH8-Z735
Alternate Identifier d840001
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-10-09T01:30:19Z
Metadata Record Identifier edu.ucar.gdex::d840001
Metadata Language eng; USA
Suggested Citation Foster, Donald S., Reap, Ronald M.. (1983). Manually-Digitized Radar Data for the Conterminous United States. NSF National Center for Atmospheric Research. https://doi.org/10.5065/FFH8-Z735. Accessed 12 October 2025.

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