Articles | Volume 19, issue 18
https://doi.org/10.5194/amt-19-5831-2026
https://doi.org/10.5194/amt-19-5831-2026
Research article
 | 
15 Sep 2026
Research article |  | 15 Sep 2026

Measuring cloud optical depth with a balloonborne microlidar operated from the stratosphere

François Ravetta, Thomas Lesigne, Vincent Mariage, and Jacques Pelon

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Short summary
The Balloonborne Cloud Observing micrOLidar (BeCOOL) is an airborne profiler designed to be operated from the stratosphere. It weights less than 6 kg and requires on average less than 4 W to work automatically onboard a gondola attached below a stratospheric balloon. Given its sensitivity and spatial resolution, this microlidar can be used to characterize the optical properties and the life cycle of cirrus clouds, or to calibrate and validate satellite observations of clouds and aerosol layers.
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