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Book DOI: 10.21467/abstracts.93 filter vegetation cover and buildings. High-precision models of heights are necessary in engineering geology to assess the stability of slopes, especially where profiles of the heights of deformation of slopes are included in the analysis, as in the GEO 5 software from FINE. Direct import of the generated profiles into the software environment from CAD and GIS systems is possible. The new version of the available software, including the calculation of stability in three-dimensional space, opens up new possibilities for assessing the stability of landslides, since it emphasizes the importance of accuracy in the formation of terrain models included in the calculations. Scientists from the Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf used UAVs for thermal imaging, in order to study the temperature distribution in the forests, which is usually completely unknown and less distinct than in urban or industrial areas where metal structures and surfaces give high contrast and sharp edges to the information. They studied the effect of the orientation of the inner chamber, the coordination of anchor points and ground control points on the resulting accuracy of beam tuning and the formation of a dense cloud with the typical use of a photogrammetric workflow for thermal imaging UAVs in natural conditions. At the Khankala field in the city of Grozny of the Russian Federation, two test aerial photographs were carried out in the infrared range using UAVs on the territory of the Khankala geothermal station, operating in two different modes: during and without the use of reverse injection of used geothermal water. For experiments, an unmanned aerial vehicle Geoscan 201 was used, equipped with digital (Sony DSX-RX1) and thermal imaging (Thermoframe-MX-TTX) cameras. In addition to various images of the geothermal station obtained from the survey, 13 thermal anomalies were revealed. The analysis of their shape and temperature contributed to the determination of their sources: fires, heating systems, etc., which was confirmed by field surveys. The results of the study demonstrate the high potential of using unmanned aerial vehicles using thermal imagers for environmental and technical monitoring of exploited geothermal deposits.

Monitoring the State of the Environment in the Areas of Influence of Industrial Enterprises by Remote Sensing in Order to Identify the Risk of Pollution