Alpine landslide periodical survey

Author

Strozzi, Tazio ; Wegmüller, Urs ; Werner, Charles ; Wiesmann, Andreas

Author_Institution

Gamma Remote Sensing, Switzerland

Volume

6

fYear

2002

fDate

24-28 June 2002

Firstpage

3629

Abstract

Potential and limitations of differential SAR interferometry for the periodical survey of Alpine displacements are investigated. For the Alpine territory, which is characterized by low vegetation, C-band differential SAR interferometry shows a relatively high coherence during the snow-free season permitting the detection and monitoring of unstable slopes on a regular basis. Limitations to the spatial coverage arise from decorrelation over forested and snow covered areas and from layover and shadowing caused by the very rugged topography. Significant results in the Swiss Alps using ERS-1/2 SAR data are used as support to our investigations.

Keywords

geomorphology; remote sensing by radar; spaceborne radar; synthetic aperture radar; Alpine displacements; Alpine landslide periodical survey; Alpine territory; Berne Canton; C-band differential SAR interferometry; ERS-1/2 SAR data; Grimselpass; Matter Valley; Swiss Alps; Switzerland; Wallis; forested areas; rugged topography; snow covered areas; snow-free season; unstable slopes; Costs; Decorrelation; Interferometry; Monitoring; Scattering; Shadow mapping; Snow; Surfaces; Terrain factors; Vegetation mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International

Print_ISBN

0-7803-7536-X

Type

conf

DOI

10.1109/IGARSS.2002.1027272

Filename

1027272