Research on the Application of Drone Aerial Survey Technology in Ecological Improvement of Muli Mining Area
To ensure the orderly and efficient implementation of the ecological remediation project in the Muli mining area of Qinghai,unmanned aerial vehicle(UAV)aerial photogrammetry technology is used to regularly and quickly obtain orthophoto images of the mining area.Combined with ground control measurement data and Qinghai CORS data,the image data is processed in a timely manner to obtain DSM and DOM data of the mining area.Using DSM data from different periods,ArcGIS software is applied to perform differential operations on the DSM data to obtain the elevation difference DSM data of the mining area.Then,the grid method is applied to calculate the high-precision excavation and filling quantities at different time nodes of each mine being renovated.Practice has shown that drone aerial surveying technology has played an important role in the ecological remediation project team of the Muli mining area,providing strong support for the implementation of the project.