Comparative Geoecological Assessment of the Development of Dangerous Exogenous Processes on the Main Pipelines of the Russian Federation

In this paper, the subject of study is dangerous exogenous processes as one of the main factors of emergency situations on main pipelines. The territories of Western Yamal (Bovanenkovo – Ukhta main gas pipeline), Southern Yakutia (East Siberia – Pacific Ocean main oil pipeline), and Sakhalin Island (Sakhalin-2 main oil and gas pipelines) were selected as model sites. High-resolution satellite images WorldView-2/3 and digital terrain models AW3D30 and ArcticDEM are used as source data. All available decryption methods were used in the work, including the use of artificial neural networks (deep learning). According to the results of the work, dangerous processes were identified at each site: thermokarst at the section of the East Siberia – Pacific Ocean main oil pipeline, thermokarst and wind erosion at the Bovanenkovo – Ukhta main gas pipeline, landslide processes and areas subject to slope processes and linear erosion at the Sakhalin-2 main oil and gas pipelines, and maps were built-diagrams of the identified processes at each of the sections of the main pipeline route. The proposed approach allows for an objective comparative analysis of sections of main pipelines in various natural conditions in order to identify common relevant patterns of development of dangerous exogenous processes that are not taken into account in standard regulatory documentation.