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Geology - Geological Hazard Identification

  • Overview
  • Applications
  • Landslide Hazard Assessment
    Landslide hazard areas are defined when the locations of past landslides are identified. Landslides change the landscape through the transportation of vegetation and soil, thus affected areas have different canopy and soil roughness than surrounding unaffected areas. Radar is sensitive to these variances in roughness, and produces contrasting backscatter between affected and unaffected areas.

    RADARSAT beam mode - Both Standard and Fine beam mode can be used to obtain detailed information on individual landslides.

    RADARSAT incidence angle - Shallow incidence angles will minimize geometric distortions associated with areas of moderate to high relief.

    Look direction - For moderate to high relief terrain, acquisitions of both ascending and descending passes maximizes the amount landslide information.

    When to acquire RADARSAT data - Acquire data when landslide information is required.

     
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