Open Access Book
Open Access Book image

Towards a rigorous fusion of GNSS and InSAR observations for the purpose of water vapor retrieval


Author: Heublein, MarionAlshawaf, FadwaMayer, MichaelHinz, StefanHeck, Bernhard
Source: Directory of Open Access Books
Publisher: KIT Scientific Publishing
ISBN: 9783731502708
Creative Commons Attribution-ShareAlike Image

Share

Description
In the framework of the rigorous fusion of GNSS and InSAR observations, the presented work carries out at a straightforward comparison of the wet delay, caused by water vapor, derived from GNSS and InSAR. The contributions of the two sensors to the wet delay are compared in the line of sight towards the SAR satellite. Comparisons of GNSS observations with the satellite-directed InSAR data show that only a partial component of the wet delay remains after the interferogram formation.