Illilouette Creek Basin Lidar Survey, Yosemite Valley, CA 2018

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OT Collection ID: OT.042021.6340.1
OT Collection Name: Illilouette Creek Basin Lidar Survey, Yosemite Valley, CA 2018
Short Name: CA18_Thompson
Collection Platform: Airborne Lidar
Metadata Download:
  • ISO 19115 (Data)
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  • Download and Access Products:

    Point Cloud Data   Bulk Download     opentopoID: OTLAS.042021.6340.1

    Raster Data   Bulk Download     opentopoID: OTSDEM.042021.6340.1
    Collection Overview: NCALM logo This lidar dataset was collected by NCALM for Sally Thompson at the University of California, Berkeley. This study aims to assess the occurrence and characteristics of post-fire erosion gullies caused by the Empire Fire in Illilouette Creek Basin, California. The study area covers approximately 74 km2 in Yosemite National Park, California.

    Publications associated with this dataset can be found at NCALM's Data Tracking Center

    Dataset Acknowledgement: Lidar data acquisition and processing completed by the National Center for Airborne Laser Mapping (NCALM). NCALM funding provided by NSF's Division of Earth Sciences, Instrumentation and Facilities Program. EAR-1830734.

    Dataset Citation: Thompson, S. (2021). Illilouette Creek Basin Lidar Survey, Yosemite Valley, CA 2018. National Center for Airborne Laser Mapping (NCALM). Distributed by OpenTopography. Accessed: 2023-10-02

    Use License: CC BY 4.0

    Dataset Keywords: lidar, yosemite, california, wildfire, post-fire, erosion

    Survey Date: 09/21/2018 - 09/23/2018

    Publication Date: 04/13/2021
    Data Provider and Roles:
    Funder Collector Principal Investigator
    • Sally Thompson - University of California, Berkeley
    Total number of points: 1,586,845,171 pts

    Area: 75.68 km2

    Point Density: 20.97 pts/m2

        Class 0 - Never classified41,421,825
        Class 1 - Unclassified395,184,231
        Class 2 - Ground229,696,464
        Class 3 - Low Vegetation459,167,252
        Class 4 - Medium Vegetation116,240,307
        Class 5 - High Vegetation340,981,637
        Class 18 - High Noise4,153,455

    Raster Resolution: 0.5 meter

    Coordinate System:
        Horizontal: UTM Zone 11N NAD83 (2011) [EPSG: 6340]
        Vertical: Ellipsoid

    Units: meter

    Survey Report: Reports

    LAS Validation Data Report: Reports
    Tile index in shapefile format: Download

    Dataset Extent in KMZ format: Download

    Dataset Spatial Bounds: North: 37.7256725940202°     South: 37.6208635262523°     East: -119.512101890976°     West: -119.632348120143°