GNSS-based water vapor estimation and validation during the MOSAiC expedition
Benjamin Männel et al.
Geodetic GNSS data for atmospheric sounding recorded during the MOSAiC Expedition 2019-2020Benjamin Männel, Markus Bradke, Maximilian Semmling, Jens Wickert, Thomas Gerber, Sylvia Magnussen, Gunnar Spreen, Robert Ricker, Lars Kaleschke, and Aikaterini Tavri https://doi.org/10.5880/GFZ.1.1.2021.003
Within the MOSAiC expedition, GNSS was used to monitor variations in atmospheric water vapor. Based on 15 months of continuously tracked data, coordinates and hourly zenith total delays (ZTDs) were determined using kinematic precise point positioning. The derived ZTD values agree within few millimeters with ERA5 and terrestrial GNSS and VLBI stations. The derived integrated water vapor corresponds to the frequently launched radiosondes (0.08 ± 0.04 kg m−2, rms of the differences of 1.47 kg m−2).
Within the MOSAiC expedition, GNSS was used to monitor variations in atmospheric water vapor....