Monitoring very slow slope movements by means of SAR interferometry: A case study from a mass waste above a reservoir in the Otztal Alps, Austria

Helmut Rott, Bernd Scheuchl, Andreas Siegel, Bernhard Grasemann

    Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed

    Abstract

    The application of radar interferometry to detect slope movements on the order of millimeters to centimeters per year is demonstrated. The deformation field of a slope above a hydropower reservoir in the Austrian Alps was derived from SAR interferometric pairs of the satellites ERS-1 and ERS-2, acquired between July 1992 and August 1998. Above the treeline it was possible to map the motion from interferograms covering time spans up to three years. Whereas ground-based geodetic measurements focussed on the movements of the lower slope section, the interferometric analysis shows that the mass wasting processes affect the entire slope of 1000 m vertical extent. Significant interannual differences of the displacement rates became apparent which were found to be related to the pattern of summer rainfall.

    OriginalspracheEnglisch
    Seiten (von - bis)1629-1632
    Seitenumfang4
    FachzeitschriftGeophysical Research Letters
    Jahrgang26
    Ausgabenummer11
    DOIs
    PublikationsstatusVeröffentlicht - 1 Juni 1999

    ÖFOS 2012

    • 105106 Geodynamik

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