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)
  • Plain Text
  • 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.

    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: 2022-12-10

    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: CA18_Thompson_metadata.pdf

    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°