Water vapor mapping by fusing InSAR and GNSS remote sensing data and atmospheric simulations

Alshawaf, F.; Fersch, B.; Hinz, S.; Kunstmann, H.; Mayer, M.; Meyer, F. J.

doi:10.5194/hess-19-4747-2015

Articles | Volume 19, issue 12

https://doi.org/10.5194/hess-19-4747-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/hess-19-4747-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 19, issue 12

Research article

|

03 Dec 2015

Research article |

| 03 Dec 2015

Water vapor mapping by fusing InSAR and GNSS remote sensing data and atmospheric simulations

F. Alshawaf, B. Fersch, S. Hinz, H. Kunstmann, M. Mayer, and F. J. Meyer

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Jan 2025	28	14	3	45
Feb 2025	36	5	0	41
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Aug 2025	48	16	1	65
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Oct 2025	26	31	4	61
Nov 2025	29	18	3	50

Latest update: 24 Nov 2025

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.