Advances in Geosciences
Advances in Geosciences
ADGEO
Articles | Volume 50
Articles | Volume 50
https://doi.org/10.5194/adgeo-50-39-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/adgeo-50-39-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 50
25 Nov 2019
 | 25 Nov 2019

Evaluation of Virtual Reference Station Constraints for GNSS Tropospheric Tomography in Austria Region

Zohreh Adavi and Robert Weber

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Latest update: 24 May 2026
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Short summary
Here, three schemes have been considered for remedying the rank deficiency of the GNSS tomography problem. For this purpose, the Virtual Reference Stations (VRS) and horizontal and vertical constraints have been defined to analyze the impact of different constraints on the accuracy of the reconstructed refractivity field. The obtained results illustrate that applying VRS stations in the sparse GNSS Network can lead to a better solution compared to applying horizontal and vertical constraints.
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