Articles | Volume 12, issue 7
https://doi.org/10.5194/amt-12-3699-2019
https://doi.org/10.5194/amt-12-3699-2019
Research article
 | 
09 Jul 2019
Research article |  | 09 Jul 2019

Calibration of a water vapour Raman lidar using GRUAN-certified radiosondes and a new trajectory method

Shannon Hicks-Jalali, Robert J. Sica, Alexander Haefele, and Giovanni Martucci

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Latest update: 02 Apr 2025
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Short summary
Water vapour trend calculations with lidars require rigorous calibrations. Here, we improve water vapour lidar calibrations using GCOS Reference Upper Air Network (GRUAN) radiosondes and a new trajectory method. The trajectory method improved the lidar calibration and more consistently agreed with the radiosonde measurement compared to the traditional method. Using GRUAN radiosondes enabled the calculation, for the first time, of a complete uncertainty budget of the calibration constant.
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