Sonoma County, CA, 2013 Lidar

Sonoma County Vegetation Mapping and LiDAR Consortium retained WSI to provide lidar and Orthophoto data and derived products in Sonoma County, CA. A classified LAS format point cloud was collected and developed. Products, such as bare earth DEMs, were derived from the lidar, but are not covered here. The original specified coordinate system for this dataset is California State Plane Zone II (FIPS 0402), NAD83 (2011), with units in US Survey Feet for horizontal, and vertical units are NAVD88 (12A) US Survey Feet. It was converted to geographic coordinates and ellipsoid heights for customized distribution through the Digital Coast. The dataset encompasses Sonoma County. The Bare earth DEMs are also available. These products have not been reviewed by the NOAA Office for Coastal Management (OCM) and any conclusions drawn from the analysis of this information are not the responsibility of NOAA, OCM or its partners. The data are available upon request via email at: coastal.info@noaa.gov.

The Sonoma County Vegetation Mapping and LiDAR Consortium (the Consortium), a group of public and private organizations, retained WSI to provide lidar and Orthophoto data and derived products in Sonoma County, and in the additions of Soda Spring Creek - Dry Creek Watershed and Lake Mendocino areas. The fine scale data collected by WSI for the Sonoma Vegetation Map Program can be used in further detailed classification of vegetation and other land cover types, depending on stakeholder interest and funding.

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A footprint of this data set may be viewed in Google Earth at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4703/supplemental/2013_Sonoma_County_Lidar.kmz.

Acquisition reports are available at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4703/supplemental/.

This dataset was contracted by the Sonoma County Vegetation Mapping and LiDAR Consortium (the Consortium), a group of public and private organizations. It was made available to NOAA for public distribution. Information regarding the use of this dataset should be directed to the Consortium.

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This dataset was contracted by the Sonoma County Vegetation Mapping and LiDAR Consortium (the Consortium), a group of public and private organizations. This dataset may be available for public distribution, information regarding the use of this dataset should be directed to the Consortium.

Lidar has been collected and processed for all areas within the project study Area. In some areas of heavy vegetation and forest cover, there may be relatively few ground points in the lidar data. Some elevation units have been interpolated across areas in the ground model where there are no elevation data (e.g., over water, over dense vegetation). TINing the points produces large triangles and hence the elevations may be less accurate within such areas. Some elevation units have been interpolated across areas in the ground model where there are no elevation data (e.g., over water, over dense vegetation).

Lidar flight lines have been examined to ensure that there was at least 60% sidelap, there are no gaps between flightlines, and overlapping flightlines have consistent elevation values. Shaded relief images have been visually inspected for data errors such as pits, border artifacts, gaps, and shifting. The data were examined at a 1:3000 scale.