February 21, 2015
By John R. Hughes, editor, Earth Imaging Journal, Denver. In late 2009, a $14.3 million allocation from the American Recovery and Reinvestment Act for new light detection and ranging (lidar) elevation data prompted the U.S. Geological Survey (USGS) National Geospatial Program (NGP) to develop a common base specification for all lidar data acquired for The
