2012 USACE NCMP Topobathy Lidar: Lake Michigan (MI,WI)

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This project was delivered to the Office for Coastal Management for use and dissemination on the Digital Coast. These files contain classified topographic and bathymetric lidar data as unclassified valid topographic data (1), Valid bathymetric data (reclassed to 11) and valid topographic data classified as ground (2). Classes 1 and 2 are defined in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards. These data were collected by the Coastal Zone Mapping and Imaging Lidar (CZMIL) system. CZMIL integrates a lidar sensor with topographic and bathymetric capabilities, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Native lidar data is not generally in a format accessible to most Geographic Information Systems (GIS). Specialized USACE and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. When the LAS files arrive horizontal positions are provided in decimal degrees of latitude and longitude referenced to the North American Datum of 1983 National Adjustment of 2011 (NAD83 NA2011) and vertical positions are referenced to the NAD83 NA11 ellipsoid and provided in meters. This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
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