Napa Watershed, CA

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OT Collection ID: OT.052010.26910.1
OT Collection Name: Napa Watershed, CA
Short Name: Napa
Collection Platform: Airborne Lidar
Metadata Download:
  • ISO 19115 (Data)
  • Plain Text
  • Download and Access Products:

    Point Cloud Data   Bulk Download     opentopoID: OTLAS.052010.26910.1

    GE Hillshades     opentopoID: OTGE.052010.26910.1
    Collection Overview: These data were acquired by the National Center for Airborne Laser Mapping (NCALM) in 2003. They have kindly agreed to make these data available to the research community through OpenTopography.

    Note: This is a classified last return dataset (i.e. there is not first return / canopy top data included). A bare earth model can be created from these data, but a model generated from the full point cloud produces something that approximates a low vegetation surface - not ground, but also not canopy top.

    UPDATE: Full unfiltered 2003 point cloud ASCII files. Bulk download of the original unfiltered ASCII files (64 GB) from the 2003 Napa Watershed collection by the National Center for Airbone Laser Mapping (NCALM). The original ASCII data has been made available in response to the August 26, 2014 Mw 6.0 South Napa Earthquake.

    Dataset Acknowledgement: Lidar data acquired by the National Center for Airborne Laser Mapping (NCALM).

    Dataset Citation: Napa Watershed, CA. Distributed by OpenTopography. . Accessed: 2022-12-09

    Use License: CC BY 4.0

    Dataset Keywords: California, lidar

    Survey Date: 05/15/2003 - 06/01/2003

    Publication Date: 05/01/2010
    Total number of points: 2,097,819,679 pts

    Area: 1,451 km2

    Point Density: 1.45 pts/m2

        Class 1 - Unclassified1,431,819,891
        Class 2 - Ground664,915,042
        Class 7 - Low Point (low noise)1,033,451
        Class 9 - Water28,821
        Class 10 - Rail22,474

    Coordinate System:
        Horizontal: UTM Zone 10N NAD83 Meters [EPSG: 26910]
        Vertical: NAVD88 (GEOID99) [EPSG: 5703]

    Units: meter

    Survey Report: 2003_Napa_NCALM_Metadata.pdf

    LAS Validation Data Report: Napa.html
    Tile index in shapefile format: Download

    Dataset Extent in KMZ format: Download

    Dataset Spatial Bounds: North: 38.686034°     South: 38.053093°     East: -122.175871°     West: -122.655486°