GNSS-based water vapor estimation and validation during the MOSAiC expedition

Männel, Benjamin; Zus, Florian; Dick, Galina; Glaser, Susanne; Semmling, Maximilian; Balidakis, Kyriakos; Wickert, Jens; Maturilli, Marion; Dahlke, Sandro; Schuh, Harald

doi:https://doi.org/10.5194/amt-14-5127-2021

Articles | Volume 14, issue 7

https://doi.org/10.5194/amt-14-5127-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-14-5127-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 7

Research article

|

28 Jul 2021

Research article |

| 28 Jul 2021

GNSS-based water vapor estimation and validation during the MOSAiC expedition

Benjamin Männel, Florian Zus, Galina Dick, Susanne Glaser, Maximilian Semmling, Kyriakos Balidakis, Jens Wickert, Marion Maturilli, Sandro Dahlke, and Harald Schuh

Data sets

Geodetic GNSS data for atmospheric sounding recorded during the MOSAiC Expedition 2019-2020 Benjamin 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

GNSS-based zenith total delays observed during the MOSAiC Campaign 2019-2020 Benjamin Männel and Florian Zus https://doi.org/10.5880/GFZ.1.1.2021.004

Short summary

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).