Small catchments DEM creation using Unmanned Aerial Vehicles

3rd International Conference Environment and Sustainable Development of Territories: Ecological Challenges of the 21st Century

生态环境科学;地球科学;经济学

Gafurov, A.M.^1

Institute of Environmental Sciences, Kazan Federal University, Kremlevskaya str., 18, Kazan

420008, Russia^1

关键词: Check points;    Digital elevation model;    Ground control points;    Point cloud;    Real time kinematic global positioning system (RTK GPS);    Small catchment;    Terrestrial laser scanning;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/107/1/012005/pdf
DOI  :  10.1088/1755-1315/107/1/012005

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Digital elevation models (DEM) are an important source of information on the terrain, allowing researchers to evaluate various exogenous processes. The higher the accuracy of DEM the better the level of the work possible. An important source of data for the construction of DEMs are point clouds obtained with terrestrial laser scanning (TLS) and unmanned aerial vehicles (UAV). In this paper, we present the results of constructing a DEM on small catchments using UAVs. Estimation of the UAV DEM showed comparable accuracy with the TLS if real time kinematic Global Positioning System (RTK-GPS) ground control points (GCPs) and check points (CPs) were used. In this case, the main source of errors in the construction of DEMs are the errors in the referencing of survey results.