Lasers - UAF Airborne Scanning LiDAR

    UAF Airborne Scanning LiDAR
    (various UAF aircraft)

    Top: the UAF LiDAR instrument installed inside the aircraft. Bottom: the viewing portal on the bottom of the plane. › View larger
    These photos show the UAF LiDAR as installed inside the aircraft (top) and the exterior viewing portal on the bottom of the plane (bottom).
    University of Alaska-Fairbanks (UAF) carries out surveys of glaciers in Alaska as part of Operation IceBridge. Their chief instrument is a compact scanning laser altimeter that can fly on smaller aircraft such as the DeHavilland DHC-3 Otter. This laser altimeter collects 10,000 data points per second and has a scan angle of 30 degrees to either side from straight down, which gives a swath width roughly equal to aircraft height. This instrument is flown at a maximum of 1500 feet, though lower and slower flights can yield higher density swaths.