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The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Articles | Volume XLVIII-M-1-2023
https://doi.org/10.5194/isprs-archives-XLVIII-M-1-2023-153-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/isprs-archives-XLVIII-M-1-2023-153-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
21 Apr 2023
| 21 Apr 2023
MATHEMATICAL AND PHYSICAL APPROACHES TO INFER ABSOLUTE ZENITH WET DELAYS FROM DOUBLE DIFFERENTIAL INTERFEROMETRIC OBSERVATIONS USING ERA5 ATMOSPHERIC REANALYSIS
B. Kamm
Institute of Photogrammetry and Remote Sensing (IPF), Karlsruhe Institute of Technology, Karlsruhe, Germany
A. Schenk
Institute of Photogrammetry and Remote Sensing (IPF), Karlsruhe Institute of Technology, Karlsruhe, Germany
Geodetic Institute Karlsruhe (GIK), Karlsruhe Institute of Technology, Karlsruhe, Germany
S. Hinz
Institute of Photogrammetry and Remote Sensing (IPF), Karlsruhe Institute of Technology, Karlsruhe, Germany
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Short summary
Short summary
This work aims at deriving high spatially resolved maps of atmospheric water vapor by the fusion data from Interferometric Synthetic Aperture Radar (InSAR), Global Navigation Satellite Systems (GNSS), and the Weather Research and Forecasting (WRF) model. The data fusion approach exploits the redundant and complementary spatial properties of all data sets to provide more accurate and high-resolution maps of water vapor. The comparison with maps from MERIS shows rms values of less than 1 mm.
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