A Portal to High-Resolution Topography Data and Tools
May 08 2012:
Now available through OpenTopography are twelve new airborne and terrestrial lidar datasets. Eight airborne datasets covering areas of Idaho are provided by the Idaho Lidar Consortium, US Forest Service, and several affiliated institutions and agencies. This release also includes four terrestrial laser scanning (TLS) datasets collected to accurately image surface rupture from earthquakes in Nevada and Mexico.
Idaho Lidar Consortium (ILC) Datasets
OpenTopography is working with the Idaho Lidar Consortium to provide online access to lidar data collected for earth and ecological studies in that state. In this release, eight point cloud datasets, totaling an area of 2,064 square kilometers, are now available via OpenTopograhy. These data have shot densities ranging from 0.35 shots/m2 to 12.85 shots/m2 and were collected to support forestry planning including vegetation structural modeling, erosion modeling, fuels, transportation planning, timber system planning, wildlife habitat modeling, and stream quality.
Terrestrial Laser Scanning (TLS) Datasets
These data were collected by UC Davis researchers to investigate displacement along active faults. A pair of surveys for both the Dixie Valley earthquake rupture in Nevada, and the El Mayor-Cucapah (EMC) earthquake in Mexico are available. These datasets have very high shot densities but cover a fraction of the area an airborne lidar dataset typically does. The Dixie Valley Fault datasets are from sites along southern extent of the 16 December 1954 M 6.8 Dixie Valley earthquake rupture in central Nevada. The El Mayor-Cucapah TLS datasets captures primary rupture features along a ~200 m long stretch of the 4 April 2010 M 7.2 El Mayor-Cucapah earthquake rupture in northern Baja California, Mexico. Researchers from UC Davis were on site collecting these EMC datasets 12 days following the earthquake. The EMC TLS datasets provide high-resolution imaging of sections of the rupture also captured by the El Mayor-Cucapah Earthquake rupture airborne lidar scan also available via OpenTopography.