Tahoe iTIN
10 meter DEM over a 32 km x 83 km area
~30 min to compile iTIN (NT PC, 2.4 GHz)
~60 min to generate STF 3.0 (NT PC)
Recognizing the unique nature of Lake Tahoe, President Clinton issued an executive order in July 1997 to establish a formal interagency partnership for management of Federal activities with the Lake Tahoe Basin and development of a linked natural-resources database and a Geographic Information System (GIS).The source data for this project was downloaded from the resulting Lake Tahoe Clearinghouse (http://tahoe.usgs.gov/). A unique 10 meter terrain/bathymetric surface has been generated integrating data from:
- 10 meter DEM derived from 1:24,000 USGS Quad Map contours
- State-of-the-art USGS Marine Geology multi-beam sonar
- State-of-the-art airborne SHOALS lidar operated by the Corps of Engineers
Feature data have been assembled from 1:24,000 source Digital Line Graphics
Digital Orthophoto Mosaic has been assembled from 72 Digital Orthophoto Quads (DOQ) � approx. 3 GB uncompressed