Water vapour mixing ratio over Ny-Alesund from LiDAR measurements 2015-2018

Using the Raman channels of the Koldeway Aerosol Raman Lidar (KARL) a water vapour mixing ratio is derived. Data is availiable for all measurements during the dark season since 2015. Calibration in the winters 2015/2016 and 2016/2017 was performed using the GRUAN radiosounding product. For comparison those winters where recalculated with radiosounding measurements processed by the Vaisala Algorithm. The winter 2017/2018 is calibrated using radiosounding measurement from the RS41processed by the Vaisala Algrithm. The details of the calibration of this water vapour product are explained in Kulla & Ritter 2019.

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