%0 Journal Article %1 9141353 %A Hadas, T. %A Hobiger, T. %D 2020 %J IEEE Geoscience and Remote Sensing Letters %K %P 1-5 %R 10.1109/LGRS.2020.3007138 %T Benefits of Using Galileo for Real-Time GNSS Meteorology %U https://ieeexplore.ieee.org/document/9141353/ %X Remote sensing of water vapor using Global Navigation Satellite Systems (GNSS) is a well-established tool for weather and climate monitoring. The current challenges of GNSS meteorology are real-time performance and the inclusion of emerging GNSS, such as Galileo. We demonstrate that real-time GPS-only, Galileo-only, and GPS+Galileo solutions are consistent among each other. However, our results show that the Galileo-only solutions tend to underestimate Zenith Total Delay (ZTD) with respect to GPS. The Galileo-only real-time ZTD is less accurate as the one from GPS. The combination of both GNSS leads to a superior product. The daily solution availability increases by up to 50%, and the overall gain is 0.7% over the entire year. The accuracy improves by 3.7% to 8.5% and uncertainty is reduced by a factor of 1.5-2. A combined GPS and Galileo solution suppresses artifacts in a real-time ZTD product which otherwise would be attributed to high-frequency orbital effects.

@article{9141353, abstract = {Remote sensing of water vapor using Global Navigation Satellite Systems (GNSS) is a well-established tool for weather and climate monitoring. The current challenges of GNSS meteorology are real-time performance and the inclusion of emerging GNSS, such as Galileo. We demonstrate that real-time GPS-only, Galileo-only, and GPS+Galileo solutions are consistent among each other. However, our results show that the Galileo-only solutions tend to underestimate Zenith Total Delay (ZTD) with respect to GPS. The Galileo-only real-time ZTD is less accurate as the one from GPS. The combination of both GNSS leads to a superior product. The daily solution availability increases by up to 50%, and the overall gain is 0.7% over the entire year. The accuracy improves by 3.7% to 8.5% and uncertainty is reduced by a factor of 1.5-2. A combined GPS and Galileo solution suppresses artifacts in a real-time ZTD product which otherwise would be attributed to high-frequency orbital effects.}, added-at = {2023-08-31T14:13:44.000+0200}, author = {{Hadas}, T. and {Hobiger}, T.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/23580ea3fc03f833c5399c6c037693036/puma-wartung}, doi = {10.1109/LGRS.2020.3007138}, interhash = {53ca0aafe9f73f36b307746969560ee0}, intrahash = {3580ea3fc03f833c5399c6c037693036}, issn = {1558-0571}, journal = {IEEE Geoscience and Remote Sensing Letters}, keywords = {}, pages = {1-5}, timestamp = {2023-08-31T12:13:44.000+0200}, title = {Benefits of Using Galileo for Real-Time GNSS Meteorology}, url = {https://ieeexplore.ieee.org/document/9141353/}, year = 2020 }