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    • NOAA Soundings IMPACTS

    Metadata Updated: March 12, 2026

    The NOAA Soundings IMPACTS dataset was collected from January 1, 2020, through March 1, 2023, during the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) field campaign. The goal of IMPACTS was to provide observations critical to understanding the mechanisms of snowband formation, organization, and evolution, examine how the microphysical characteristics and likely growth mechanisms of snow particles vary across snowbands, and improve snowfall remote sensing interpretation and modeling to significantly advance prediction capabilities. These radiosonde data files include wind direction, dew point temperature, geopotential height, mixing ratio, atmospheric pressure, relative humidity, wind speed, temperature, potential temperature, equivalent potential temperature, and virtual potential temperature measurements at various levels of the troposphere. The data are available in netCDF-4 format.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date April 11, 2025
    Metadata Updated Date March 12, 2026

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 11, 2025
    Metadata Updated Date March 12, 2026
    Publisher NASA/MSFC/GHRC
    Maintainer
    Identifier 10.5067/IMPACTS/SOUNDING/DATA201
    Data Last Modified 2026-03-10
    Category Earth Science
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id d1828826-f830-4cae-8c24-247e5ddcb359
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    License https://www.usa.gov/government-works
    Old Spatial "CARTESIAN",{"NorthBoundingCoordinate":48.5747,"WestBoundingCoordinate":-98.42330000000001,"EastBoundingCoordinate":-68.00359999999999,"SouthBoundingCoordinate":27.6953}
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 7e188c0718235990fdf3189d56a07ed8b2efefc8c2cf36132c74b4941b9d2df3
    Source Schema Version 1.1
    Spatial
    Temporal 2020-01-01/2023-03-01

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