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Airborne Precipitation Radar 3rd Generation (APR-3) CPEX-AW

Published by NASA/MSFC/GHRC | National Aeronautics and Space Administration | Catalog Last Checked: June 25, 2026 at 02:07 PM | Dataset Last Updated: June 23, 2026
The Airborne Precipitation Radar 3rd Generation (APR-3) CPEX-AW dataset consists of radar reflectivity, Doppler velocity for all bands, linear depolarization ratio Ku-band, and normalized radar cross section measurements at Ka- and Ku- bands data collected by the APR-3 onboard the NASA DC-8 aircraft. These data were gathered during the Convective Processes Experiment – Aerosols & Winds (CPEX-AW) field campaign. CPEX-AW was a joint effort between the US National Aeronautics and Space Administration (NASA) and the European Space Agency (ESA) with the primary goal of conducting a post-launch calibration and validation activities of the Atmospheric Dynamics Mission-Aeolus (ADM-AEOLUS) Earth observation wind Lidar satellite in St. Croix. These data files are available from August 20, 2021 through September 4, 2021 in a MatLab file, with associated browse files in JPEG format.

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Complete Metadata
@type dcat:Dataset
accessLevel public
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contactPoint 
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  "@type": "vcard:Contact",
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}
description The Airborne Precipitation Radar 3rd Generation (APR-3) CPEX-AW dataset consists of radar reflectivity, Doppler velocity for all bands, linear depolarization ratio Ku-band, and normalized radar cross section measurements at Ka- and Ku- bands data collected by the APR-3 onboard the NASA DC-8 aircraft. These data were gathered during the Convective Processes Experiment – Aerosols & Winds (CPEX-AW) field campaign. CPEX-AW was a joint effort between the US National Aeronautics and Space Administration (NASA) and the European Space Agency (ESA) with the primary goal of conducting a post-launch calibration and validation activities of the Atmospheric Dynamics Mission-Aeolus (ADM-AEOLUS) Earth observation wind Lidar satellite in St. Croix. These data files are available from August 20, 2021 through September 4, 2021 in a MatLab file, with associated browse files in JPEG format.
distribution 
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identifier 10.5067/CPEXAW/APR3/DATA101
keyword 
[
  "earth-science-precipitation-atmosphere-atmospheric-precipitation-indices",
  "earth-science-radar-spectral-engineering-doppler-velocity",
  "earth-science-radar-spectral-engineering-radar-reflectivity"
]
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": -80.7804, "NorthBoundingCoordinate": 34.046, "EastBoundingCoordinate": -45.6417, "SouthBoundingCoordinate": 11.8615}]]"
temporal 2021-08-20/2021-09-04
theme 
[
  "Earth Science"
]
title Airborne Precipitation Radar 3rd Generation (APR-3) CPEX-AW

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