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MONITORING GEOHAZARDS NEAR PIPELINE CORRIDORS WITH AN ADVANCED INSAR TECHNIQUE AND GEOMECHANICAL MODELLING

Session: Landslides and Slope Stability IV / Mouvements de terrain et stabilité des pentes IV

Jayanti Sharma, MDA Systems Ltd. (Canada)

Surface displacements derived from Interferometric Synthetic Aperture Radar (InSAR) for the monitoring and risk assessment of geohazards near pipeline corridors are presented. The InSAR results are integrated with GIS analyses and field data to define geologic and preliminary geomechanical models using the InSAR-derived displacements and GIS-derived geological features as a constraint. Geohazard monitoring is demonstrated over the Fels Glacier in Alaska, which is bordered by active, deep-seated, slowly deforming slopes with the potential for generating large landslides that could damage the nearby Trans-Alaska Pipeline and Richardson Highway.