Using UAV surveying technology to calculate the storage capacity curve of a dam
In order to obtain accurate storage capacity curve of sand bar,this paper presents a method for calculating the storage capacity curve.Firstly,the UAV is used to fly at low altitude over the bar area to obtain high-resolution aerial photography,and the high-precision DEM of the study area is obtained through image control,aerial triangulation and diorama intensive matching.Secondly,on the basis of regular grid DEM,the paper analyzes the calculation principle of reservoir capacity and the influence of DEM elevation accuracy on the accuracy of reservoir capacity curve.Thirdly,software is used to calculate and depict the storage capacity curve according to aforementioned principles in order to obtain the storage capacity curve of the sand bar.Finally,two necessary premises of the proposed method are implemented.
UAV surveying technologyhigh-precision DEMstorage capacity curvedammonitoring the sediment deposition
NETL
NSTL
万方数据
维普
