Collectionand Processing Analysis of Massive Flooding Data in The Reservoir Area of Hydropower Stations
In order to meet the project requirements of quickly,accurately,and economically obtaining inundation data in the reservoir area,from the perspectives of field and indoor surveying,the Huace RTK I80 is connected to the Guangdong Province Continuous Operation Satellite Positioning Service System(GDCORS)for horizontal and vertical control surveying,and the DJI P4 RTK drone is used for aerial flight to obtain qualified photos.The method of generating digital surface model(DSM)and orthophoto(DOM)data through DJI intelligent mapping software,combining elevation threshold rendering in GIS and Python software,and finally performing orthophoto overlay analysis in CASS software to form a map.It can quickly and accurately count the number of flooded houses,crops,and other indicators,and output the results of the flooded area.
国家科技期刊平台
NSTL
万方数据
维普
