Description: This layer was created around 2015 and was derived based off of the LiDAR DEM data from 2010. Importance:The high water line (6,229 feet) outlines the area for special shoreline development standards such as for filling and dredging, motorized watercraft, and fish habitat and spawning provisions. In fact, Code Chapter 84, Development Standards Lakeward of High Water uses the high water line as a way to define special shoreline development standard requirements. In addition, the high water line is used to outline special land coverage provisions (Code Chapter 30, Land Coverage); specifically the maximum land coverage allowed in non-sensitive land within a Center of a conforming area plan, located further than 300 feet from the High Water Lineof Lake Tahoe is 70%. Shoreline, another crucial feature of Lake Tahoe, is defined as the highest line normally covered by waters of a lake or body of waters and for Lake Tahoe, the shoreline elevation is 6,229.1 feet.
Description: USGS/ACoE Original data: http://tahoe.usgs.gov/files/shoalsfaq.htm#quality (the original data are +/- 15 cm). This data was created in July 2000.Six feet was subtracted from the “zero” line at the top of the reservoir (6229.1 ft elevation) to get an approximation of the natural rim. The line is 6223.1ft with +/- 15 cm (or about 5.9 inches) precision.
Description: This data was derived from a bare-earth DEM produced from a LiDAR point cloud. The contour data represents a line through the cell center of the corresponding pixel value in the DEM. The clipped bare earth digital elevation model (DEM) represents the earth's surface with all vegetation and anthropogenic features removed. It is derived from integrated Green and NIR LiDAR data using TIN processing of the ground and bathymetric bottom point returns. This version of topobathymetric models has been clipped to avoid triangulation and false interpolation over areas identified as voids in the Bathymetric Coverage Polygon (provided as a separate deliverable). The horizontal datum for this dataset is NAD83 (2011), the vertical datum is NAVD88, Geoid 12B, and the data is projected in UTM Zone 10N. Units are in Meters. Quantum Spatial collected the Lake Tahoe LiDAR data for Spatial Informatics Group between 09/09/18 and 09/16/18.
Copyright Text: Spatial Infomatics Group, Quantum Spatial, Tahoe Regional Planning Agency.
Questions about the data? Contact: mbindl@trpa.org