Comparison of laser scanning and radar interferometry in observing the movements of the earth's surface in open-pit mining

The article discusses two methods of observing deformations of the Earth’s surface – satellite radar interferometry and aerial laser scanning. These methods of monitoring deformations of sides, slopes of quarries and sections are continuously being improved. Deformations of the sides and slopes can cause accidents and accidents. Therefore, there is a need for a more detailed study of the use of radar interferometry and airborne laser scanning in observing deformations of the Earth’s surface. The relevance of the comparative analysis of these techniques lies in the fact that improving their characteristics will significantly accelerate the performance of surveying work, increase the accuracy of measurement results and reduce the risks of negative consequences due to deformation processes. At the same time, the paper describes in sufficient detail the basic principles of performing surveying measurements using these methods. The factors influencing the increase in the efficiency of satellite radar interferometry and airborne laser scanning are considered.