The impact of terrain correction of polarimetric SAR data on glacier change detection

Author

Akbari, Vahid ; Larsen, Yngvar ; Doulgeris, Anthony P. ; Eltoft, Torbjørn

Author_Institution

Dept. of Phys. & Technol., Univ. of Tromso, Tromso, Norway

fYear

2012

fDate

22-27 July 2012

Firstpage

5129

Lastpage

5132

Abstract

This paper investigates the impact of terrain correction on change detection results. We firstly assess the effects of topography on radar brightness and show how we can produce the radiometrically terrain corrected multilook complex (MLC) covariance data. Next, changes on radar cross section as a function of polarization states due to azimuth slope variations will be studied. Finally experimental results on glacier dataset are shown by focusing on change detection results before and after terrain corrections.

Keywords

glaciology; remote sensing by radar; synthetic aperture radar; terrain mapping; azimuth slope variations; glacier change detection; glacier dataset; multilook complex covariance data; polarimetric SAR data; polarization state function; radar brightness; radar cross section; terrain correction; terrain corrections; topography effects; Azimuth; Geometry; Radar imaging; Radiometry; Spaceborne radar; Synthetic aperture radar; Synthetic aperture radar; azimuth slope correction; glacier change detection; polarization; radiometric terrain correction;

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.2012.6352456

Filename

6352456