Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued oltre 9 anni ago
Summary
Description
The U.S. Geological Survey (USGS) had a requirement for high resolution Lidar needed for mapping the Brooks Camp region of Katmai National Park in Alaska. Aero-Metric, Inc. (AeroMetric) acquired highly accurate Lidar data for an area that comprises of approximately 17.5 square miles for the USGS. This acquisition was carried out to satisfy the need for high resolution elevation data in the region. A Leica ALS70 Lidar system was used in the collection of data for this project. This project involves new Lidar data acquisition at an approximate pulse spacing of 0.6 meters. This data was to be calibrated such that all systematic errors were accounted for. The project required bare-earth classification and hydroenforcement of water bodies for the production of contours and digital elevation models. Data was to conform to a vertical accuracy of 18.5 cm RMSE in open terrain. The accuracy as tested and published in this report has met vertical accuracy requirements as specified by the client.