2015 Volume 21 Pages 105-110
This purpose of this paper is to show the application of the small-medium river survey by using aerial survey technologies. We surveyed the Umetani river using Digital Aerial Cameras (DAC), Helicopter Laser Profiler (LP) and Unmanned Aerial Vehicle (UAV) in Gifu prefecture. We have also obtained the spots of surface elevation with topographical survey in river with VRS-GPS.
As a consequence of surveying, we proved that aerial survey technologies were relative high precise. DAC was suitable for survey riverine environment in watershed scale. LP could obtain most precise surface elevation. UAV could survey river channel not only under the terrain canopy but also under the water depth up to 70cm. We proposed to apply aerial survey technologies to river survey in consequence of some good points.
