IMPROVEMENT OF APPROACHES FOR MONITORING OF EXOGENOUS GEOLOGICAL PROCESSES WITH USING OF SATELLITE INTERFEROMETRY METHODS

Abstract

Summary The purpose of the work is investigation of possibilities for improving approaches to the monitoring of exogenous geological processes whiperformed within the framework of the State Environmental Monitoring System of Ukraine using radar satellite data. In Ukraine, there is a significant demand for regular studies of hazardous exogenous processes. At the same time, the volume of field surveying works and the number of monitoring sites are decreasing year by year. The authors of the article propose to solve this problem by implementation of two-tier system for monitoring hazardous geological processes with using radar satellite data. In the first stage it is supposed to use the results of processing satellite information processed by interferometric methods, in the second - traditional geodetic measurements. The relevance and accuracy of the proposed approach was tested by the example of geodynamic assessment of the technogenic-dangerous territory of the mining and chemical enterprise “POLYMINERAL” (Stebnik), which was performed in the framework of the study. For this purpose there were applied an innovative interferometric methods of radar data processing of Sentinel-1a, b satellites data: “PS” - Persistent Scatterers Interferometry “and” SBAS “- Small Baseline Subset. According to the results of the study, there were determined the areas with concentrated deformations of the earth’s surface and the dynamics of their settling by time. The combination of geodetic and interferometric methods will significantly increase the amount and quality of information about geodynamic situation of territories and objects and reduce the overall cost of the works. Such advanced approaches can be becomed of the basis for establishing an effective mechanism for monitoring of statewide exogenous geological processes.