UMD-NASA Carbon Mapping /Sonoma County Vegetation Mapping and LiDAR Program

OT Collection ID: OT.092014.2871.1
OT Collection Name: UMD-NASA Carbon Mapping /Sonoma County Vegetation Mapping and LiDAR Program
Collection Platform: Airborne Lidar
Metadata Download:
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    Point Cloud Data   Bulk Download     opentopoID: OTLAS.092014.2871.1

    Raster Data   Bulk Download     opentopoID: OTSDEM.092014.2871.1
    Collection Overview:

    This survey covers all of Sonoma County as well as two small portions of southern Mendocino County. Data were provided by the University of Maryland and the Sonoma County Vegetation Mapping and Lidar Program under grant NNX13AP69G from NASA's Carbon Monitoring System (Dr. Ralph Dubayah, PI). The Sonoma County Vegetation Mapping and Lidar Program is NASA/UMD's local partner in this project- its members are as follows: the Sonoma County Agricultural Preservation and Open Space District, the Sonoma County Water Agency, the California Department of Fish and Wildlife, the United States Geological Survey, the Sonoma County Information Systems Department, the Sonoma County Transportation and Public Works Department, the Nature Conservancy, and the City of Petaluma.

    These data will be used for various research projects throughout Sonoma County. They are critical to assessing climate mitigation and adaptation strategies and benefits provided by the landscape, such as the amount of carbon sequestration in forests or the degree to which riparian areas, floodplains, and coastal habitats may buffer extreme weather events. Other research applications include groundwater, ecosystem services valuation, ecosystem resiliency, and wildlife habitat connectivity. Finally, these data sets are key to facilitating good planning and management for watershed protection, flood control, fire and fuels management and wildlife habitat conservation.

    The data was collected between September 28 and November 26, 2013 by Watershed Sciences, Inc. (WSI). Lidar was collected at high density greater than 8 pulses per square meter. WSI used two airplanes, one carrying a Leica ALS50 and the other a Leica ALS70; systems were flown at 900 meters above ground level, capturing a scan angle of 15 degrees from nadir (30 degree field of view). 4-band, 6-inch resolution aerial photography was collected simultaneously with the Lidar data.

    Dataset Acknowledgement: Lidar data and orthophotography were provided by the University of Maryland under grant NNX13AP69G from NASA's Carbon Monitoring System (Dr. Ralph Dubayah and Dr. George Hurtt, Principal Investigators). This grant also funded the creation of derived forest cover and land cover information, including a countywide biomass and carbon map, a canopy cover map, and DEMs. The Sonoma County Vegetation Mapping and Lidar Program funded Lidar derived products in the California State Plane Coordinate System, such as DEMs, hillshades, building footprints, 1-foot contours, and other derived layers. The entirety of this data is freely licensed for unrestricted public use, unless otherwise noted. Any use of these data, including value-added products, within reports, papers, and presentations must acknowledge NASA Grant NNX13AP69G, the University of Maryland, and the Sonoma Vegetation Mapping and Lidar Program as their sources.

    Dataset Citation: N/A - Citation Guidance

    Dataset Keywords: Sonoma County, Lidar, Vegetation and Habitat Mapping, Carbon Mapping, Biomass Mapping, Riparian Mapping

    Survey Date: 09/28/2013 - 10/28/2013

    Publication Date: 10/13/2014
    Total lidar returns: 60,040,589,769 pts

    Area: 4,374 km2

    Point Density: 13.73 pts/m2

        Class 1 - Unclassified18,102,638,702
        Class 2 - Ground12,115,756,053
        Class 5 - High Vegetation27,499,909,007
        Class 6 - Building590,990,934
        Class 7 - Low Point (noise)1,682,180,110
        Class 9 - Water49,114,963

    Raster Resolution: 3 ft

    Coordinates System:
        Horizontal: State Plane, California Zone II, FIPS Zone 0402, (NAD83) 2011 [EPSG: 2871]
        Vertical: NAVD88 (GEOID 12A), US Survey Feet

    Survey Report:

    LAS Validation Data Report: SONOMA_LIDAR.html
    Dataset Extent in KMZ format: Download

    Dataset Spatial Bounds: North: 39.2408510000001°     South: 38.1076840000001°     East: -122.345848°     West: -123.537898°