Geological Disaster Monitoring Based On Uav Photogrammetry

For the scientific management of geological disasters prevention in Guodian Dadu River Hydropower Development Co. Dagangshan support, aims to Dagangshan Hydropower Reservoir six key geological disasters point digital sampling, the results of sampling and digital finishing, DOM production data the key technology DOM mosaic-linear editing, 3D modeling and applications, respectively, from the comprehensive utilization of vertical and tilt between the two analysis, the final results of the analysis and interpretation accuracy, breaking the traditional geological hazard monitoring defects, the realization of a comprehensive disaster body three-dimensional observation.UAV aerial technology to obtain high-resolution(0.1m) sensing image, as environmental disasters Dagang Hydropower Reservoir monitoring data base, which detailed data content(image data, accurate surface models(DSM), precision the elevation model(DEM)) for the Dagangshan Hydropower Reservoir geological disaster monitoring and provide technical support. Hydropower Reservoir in Dagang, compared with the traditional method of investigation and monitoring, technical analysis of UAV aerial photography and geological disaster management station and good governance on the feasibility and application advantages demonstrated in geological disaster monitoring.This study was to obtain data from the UAV aerial technology in the industry to complete the data generation, interpretation, modeling work, compared to traditional high-speed geological hazard monitoring more effective. Low cost UAV acquisition cost than other aircraft data acquisition data sources, and determine the characteristics of UAVs can fly it more flexible, select the area to be monitored flight, or concentrated area of geological disasters along the strip was also flying It may, thus avoiding the waste of irrelevant data acquisition brings, reduce the workload of late monitoring. The resulting images UAV aerial technology has a very high spatial resolution, detailed features of geological disasters body can be clearly identified, through later orthorectified, access high-precision remote sensing image, very suitable for geological hazards interpretation of remote sensing data. Therefore, through this study that the experience UAV remote sensing technology and methods of geological disaster monitoring and monitoring of this pilot can be achieved in the promotion and application of geological disasters Reservoir monitoring and dynamic monitoring of geological disasters in order to carry out the foundation.