Inverse modeling of ground-based GNSS-r - Results and new possibilities

Inverse modeling of ground-based GNSS reflections has the potential to improve existing GNSS-R applications and lead to novel concepts for retrieving geophysical parameters around existing or deliberately built GNSS sites. As we will show in this paper, consistent, accurate and precise determination...

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Bibliographic Details
Published in:2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Main Authors: Hobiger, Thomas, Strandberg, Joakim, Haas, Rüdiger
Language:unknown
Published: 2017
Subjects:
Geotechnical Engineering
Other Physics Topics
Geophysics
GNSS-R
troposphere delay
snow
inverse modeling
ice
sea-level
ground-based instruments
Sea ice
Online Access:https://doi.org/10.1109/IGARSS.2017.8127547
https://research.chalmers.se/en/publication/f6ef09d2-4507-4bca-b321-39f29804274b
Description
Summary:Inverse modeling of ground-based GNSS reflections has the potential to improve existing GNSS-R applications and lead to novel concepts for retrieving geophysical parameters around existing or deliberately built GNSS sites. As we will show in this paper, consistent, accurate and precise determination of sea-surface heights can be realized. Moreover, we demonstrate that it is possible to detect sea-ice freeze states at coastal GNSS sites. In addition, it will be shown how the inverse modeling approach can be used for self-calibration of troposphere delays, which would otherwise bias the target parameters and need to be corrected for by external measurements or data-sets.

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