2006 URS Bare Earth Lidar: Shawsheen River, MA

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Overview

URS Corporation contracted EarthData International to aquire topographic elevation data for 82 square miles in Essex and Middlesex Counties, Massachusetts during 2006. Products generated include lidar point clouds, 3D hydro breaklines, and lidar bare-earth elevation models in LAS format using lidar collected with a Leica ALS-50 Aerial Lidar Sensor. Lidar Sensor Specifications: Sensor: Leica ALS-50 Aerial Lidar Sensor (s/n ALS036) Airspeed: ~ 130 knots Laser Pulse Rate: 38,000 Hz Field of View: 35 Degrees Scan Rate: 20 Hz Average Swath Width: 1537 meters Nominal Post Spacing 3 meters This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
Total points: 30,743,404 pts
Survey Area: 172 km2
Point Density: 0.18 pts/m2
Survey Date: 12/16/2006
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