Towards operational multi-GNSS tropospheric products at GFZ Potsdam

Wilgan, Karina; Dick, Galina; Zus, Florian; Wickert, Jens

doi:https://doi.org/10.5194/amt-15-21-2022

Articles | Volume 15, issue 1

https://doi.org/10.5194/amt-15-21-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-15-21-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 1

Research article

|

03 Jan 2022

Research article |

| 03 Jan 2022

Towards operational multi-GNSS tropospheric products at GFZ Potsdam

Karina Wilgan, Galina Dick, Florian Zus, and Jens Wickert

Data sets

SEMISYS - Sensor Meta Information System, V. 4.1 M. Bradke https://doi.org/10.5880/GFZ.1.1.2020.005

Tropospheric parameters based on ERA5 data F. Zus https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5

Daily GNSS data EPN http://www.epncb.oma.be/

GNSS data of the global GFZ tracking network, V. 1 M. Ramatschi, M. Bradke, T. Nischan, and B. Männel https://doi.org/10.5880/GFZ.1.1.2020.001

Short summary

The assimilation of GNSS data in weather models has a positive impact on the forecasts. The impact is still limited due to using only the GPS zenith direction parameters. We calculate and validate more advanced tropospheric products from three satellite systems: the US American GPS, Russian GLONASS and European Galileo. The quality of all the solutions is comparable; however, combining more GNSS systems enhances the observations' geometry and improves the quality of the weather forecasts.