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Evaluation of LIDAR for landslide mapping.

File Language:
English


Details

  • Alternative Title:
    Evaluation of Light Detection And Ranging for landslide mapping.
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  • Abstract:
    The Caltrans’ GeoResearch Group, in collaboration with the Department of Conservation, successfully

    used LIDAR technology to map landslides along two heavily forested highway corridors in Humboldt

    and Del Norte Counties. LIDAR (Light Detection And Ranging) is a technique that uses reflections

    from lasers to determine distance, similar to a survey total station, but is typically performed aerially

    using a denser array of laser sources from a small aircraft. LIDAR has an advantage over

    conventional mapping methods in that it can effectively map true ground surface, and not just treetops

    in heavily forested areas. The LIDAR survey will be used in conjunction with traditional interpretation

    of aerial photographs and field methods to prepare landslide maps of two demonstration corridors.

    The deliverables of this study includes specifications for contracting LIDAR survey projects and this

    report that summarizes the results of the LIDAR surveys and their applicability to landslide mapping.

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  • Main Document Checksum:
    urn:sha256:4e150107ba1d74344c2e512e0a9119435f8feb8a794ff0f860c2f10f1bd391ec
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  • File Type:
    Filetype[PDF - 2.87 MB ]
File Language:
English
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