Atmospheric delay compensation in differential SAR interferometry for volcanic deformation monitoring - study case: El Hierro

Author

Cong, Xiaoying ; Eineder, Michael ; Fritz, Thomas

Author_Institution

Tech. Univ. Munchen (TUM), Garching, Germany

fYear

2012

fDate

22-27 July 2012

Firstpage

3887

Lastpage

3890

Abstract

In order to obtain the accurate ground deformation from SAR interferograms on volcanic areas, the signal propagation delay through the atmosphere needs to be considered. In this paper numerical weather model data are used to compensate the stratified atmospheric delay in test site El Hierro (Canary Islands). Three GPS stations, installed on the nearby Island, are selected for validating and evaluating the weather model data. Atmospheric phase screen from PS-estimation shows a good agreement with turbulence induced atmospheric effect.

Keywords

atmospheric techniques; remote sensing by radar; volcanology; weather forecasting; Canary Islands; El Hierro test site; GPS stations; atmospheric delay compensation; atmospheric phase screen; differential SAR interferometry; ground deformation; numerical weather model data; signal propagation delay; stratified atmospheric delay; turbulence induced atmospheric effect; volcanic areas; volcanic deformation monitoring; weather model data; Atmospheric measurements; Atmospheric modeling; Data models; Delay; Global Positioning System; Meteorology; Numerical models; SAR; TerraSAR-X; deformation; tropospheric delay; volcano;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6350563

Filename

6350563