Abstract
The increase in natural disasters associated with hydrological hazards is of concern and requires ensuring the safety of people. This paper presents an analysis of hydrological hazards in the territory of the Southern Baikal Area and gives a quantitative assessment of the frequency of severe floods with flooding of territories. In the work, we used a retrospective statistical analysis of hydrological natural hazards. Processing and generalization of statistical data for the period 2004-2020 were carried out for all watercourses of the Southern Baikal Area based on the data of the State Reports “On the state of protection of the population and territories of the Russian Federation from natural and man-made emergencies” in the relevant years, State Reports “On the state and protection of the environment of the Irkutsk Region” in the relevant years; we also used historical information published in literary sources. It has been shown that with the most unfavorable development of the flood situation, up to 11 settlements with a population of up to 38,700 people fall into the zone of possible flooding. The frequency of strong floods affecting a large area is 4.0·10-2 1/year.
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