The purpose of the study is to assess the risk of mudflows for bridge structures for the territory of eastern Transcarpathia using methods of geoinformation analysis and modeling. At the present stage, it is common to model and forecast the development of mudflow processes based on taking into account the combined effect of factors. The main factors of the occurrence and development of mudflow phenomena include: tectonic, geological, hydrological conditions, modern exogenous geological processes, soil and plant cover and anthropogenic activity. The spatial model has a constant character, since the spatial factors of the development of mudflow processes are not variable in time and determine the probability of the occurrence of a mudflow phenomenon in space, the period of activation is determined by the influence of time factors for which a time complex indicator should be calculated. Based on the created mudflow hazard model for the research area, the mudflow hazard for bridge crossings was assessed. These bridge structures are located in the upper reaches of the Tereblya and Teresva rivers, in the basin of the Black Tysa and White Tysa rivers. For a detailed assessment of engineering and geological threats to bridge structures as a result of the development of mudflows, floods, coastal erosion processes, it is advisable to use a comprehensive approach, using the toolkit of geoinformation systems and a wide range of data sources, in particular, data from remote sensing of the Earth.
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