The Convective Processes Experiment – Aerosols & Winds (CPEX-AW) campaign is 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 in the U.S. Virgin Islands. CPEX-AW took place from August 18, 2021 to September 10, 2021 and is a follow-on to the Convective Processes Experiment (CPEX) field campaign which took place in the summer of 2017 (JPL | CPEX). The 2021 field campaign added an aerosol (A) and winds (W) component—CPEX-AW.  In addition to joint calibration/validation of ADM-AEOLUS, the CPEX-AW field campaign provided opportunities to study the dynamics and microphysics related to the Saharan air layer, African easterly waves and jets, the marine atmospheric boundary layer, and convection that not only advance our understanding of tropical dynamics but also improve weather forecasts. More information is available from NASA’s Earth Science Project Office’s CPEX-AW field campaign webpage.


This collections page will be updated as new CPEX-AW datasets are published.

To cite the entire collection, please use the following:

Skofronick-Jackson, Gail, Aaron Piña, and Shuyi Chen. 2021. Convective Processes Experiment – Aerosols & Winds (CPEX-AW) Field Campaign Collection [indicate subset used]. Data available online from the NASA EOSDIS Global Hydrometeorology Resource Center Distributed Active Archive Center, Huntsville, Alabama, U.S.A. doi:

For more information on GHRC DAAC citations, see these Instructions for citing GHRC data.

General Characteristics

Projects: CPEX-AW
Platforms: NASA DC-8
Sensors/Instruments: ADM-Aeolus, APR-3, DAWN, Dropsondes, HALO, HAMSR
Parameters: Radar, Atmospheric Winds, Atmospheric Temperature, Atmospheric Water Vapor, Atmospheric Pressure, Clouds, Microwave, Precipitation, Doppler Velocity, Brightness Temperature
Processing level: 0, 1A, 2
Formats: ASCII, HDF4, HDF5, MAT, netCDF-3, Word


[coverage map]
Red dots or areas indicate coverage range.


Location: Puerto Rico, St. Croix, U.S. Virgin Islands
Spatial resolution: along-track 3.0 km; 2km x 2km, 800 m; varies with flight altitude and scan
North boundary: 34.73°
West boundary: -118.163°
East boundary: -45.6412°
South boundary: 11.8616°
Temporal resolution: 1 second - < Daily
Start date: 2021-08-17
Stop date: 2021-09-10

Member Datasets and More Information


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

DC-8 Meteorological and Navigation Data CPEX-AW

Doppler Aerosol WiNd Lidar (DAWN) CPEX-AW

Dropsonde CPEX-AW

High Altitude Lidar Observatory (HALO) CPEX-AW

High Altitude Monolithic Microwave integrated Circuit (MMIC) Sounding Radiometer (HAMSR) CPEX-AW

Mission Reports CPEX-AW

Puerto Rico Radiosondes CPEX-AW



General Documentation:
CPEX-AW Information
General Documentation:
EGU: NASA’s Contributions to the 2021 Aeolus Field Campaign: CPEX-AW
GHRC CPEX-AW Homepage:
GHRC CPEX-AW Project Page
ASDC CPEX-AW Datasets:
Atmospheric Science Data Center's CPEX-AW Data Page
Digital Object Identifier
Citing Data: 
Instructions for citing GHRC data.

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