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Autonomous Parsivel Unit (APU) IMPACTS

Published by NASA/MSFC/GHRC | National Aeronautics and Space Administration | Catalog Last Checked: June 25, 2026 at 02:04 PM | Dataset Last Updated: June 23, 2026
The Autonomous Parsivel Unit (APU) IMPACTS data were collected in support of the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) campaign. The IMPACTS field campaign addressed providing observations critical to understanding the mechanisms of snowband formation, organization, and evolution, examining how the microphysical characteristics and likely growth mechanisms of snow particles vary across snowbands, and improving snowfall remote sensing interpretation and modeling to significantly advance prediction capabilities. This dataset consists of precipitation data including precipitation amount, precipitation rate, reflectivity in Rayleigh regime, liquid water content, drop diameter, and drop concentration. Data are available in ASCII format from January 15, 2020 through February 29, 2020.

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Complete Metadata
@type dcat:Dataset
accessLevel public
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contactPoint 
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}
description The Autonomous Parsivel Unit (APU) IMPACTS data were collected in support of the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) campaign. The IMPACTS field campaign addressed providing observations critical to understanding the mechanisms of snowband formation, organization, and evolution, examining how the microphysical characteristics and likely growth mechanisms of snow particles vary across snowbands, and improving snowfall remote sensing interpretation and modeling to significantly advance prediction capabilities. This dataset consists of precipitation data including precipitation amount, precipitation rate, reflectivity in Rayleigh regime, liquid water content, drop diameter, and drop concentration. Data are available in ASCII format from January 15, 2020 through February 29, 2020.
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identifier 10.5067/IMPACTS/APU/DATA101
keyword 
[
  "earth-science-precipitation-atmosphere-droplet-size",
  "earth-science-precipitation-atmosphere-hydrometeors",
  "earth-science-precipitation-atmosphere-liquid-precipitation",
  "earth-science-precipitation-atmosphere-precipitation-amount"
]
license https://www.usa.gov/government-works
modified 2026-06-23
programCode 
[
  "026:000"
]
publisher 
{
  "name": "NASA/MSFC/GHRC",
  "@type": "org:Organization"
}
spatial 
"["CARTESIAN", [{"WestBoundingCoordinate": -75.5894, "NorthBoundingCoordinate": 38.2064, "EastBoundingCoordinate": -75.3588, "SouthBoundingCoordinate": 37.919}]]"
temporal 2020-01-15/2020-02-29
theme 
[
  "Earth Science"
]
title Autonomous Parsivel Unit (APU) IMPACTS

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