Abstract
Methodological approaches and results of estimation of peak flow characteristics of the Iya River taking into account the extreme rainfall flood in the town of 2019, that led to the catastrophic flood in Tulun (the Irkutsk region), are considered. A hydrodynamic model considering the impact of hydraulic structures is proposed to determine the peak flow and to calculate flooding levels. The characteristics of peak flow are determined by various methods, including those considering several floods per year. It is recommended to obtain design values by generalizing the results of several methods of hydrological calculations.
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ACKNOWLEDGMENTS
The authors thank L.M. Korytnyi (Sochava Institute of Geography, Siberian Branch, Russian Academy of Sciences) and A.G. Lobanova (State Hydrological Institute) for useful discussions and assistance.
Funding
The study is partially financed by the State in the framework of the theme 0147-2019-0003 of the Governmental Assignment (the state registration number is AAAA-A18-118022090105-5).
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Russian Text ©The Author(s), 2020, published in Meteorologiya i Gidrologiya, 2020, No. 11, pp. 53-63.
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Bolgov, M.V., Korobkina, E.A., Osipova, N.V. et al. Estimates of Peak Flow of the Iya River during the Extreme Flood in 2019. Russ. Meteorol. Hydrol. 45, 783–790 (2020). https://doi.org/10.3103/S1068373920110059
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DOI: https://doi.org/10.3103/S1068373920110059