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Proceedings of the International Association of Hydrological Sciences An open-access publication for refereed proceedings in hydrology

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Proc. IAHS, 370, 161-165, 2015
https://doi.org/10.5194/piahs-370-161-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
11 Jun 2015
Evaluating extreme flood characteristics of small mountainous basins of the Black Sea coastal area, Northern Caucasus
L. S. Lebedeva1, O. M. Semenova2,3, T. A. Vinogradova3, M. N. Kruchin4, and N. V. Volkova5 1Melnikov Permafrost Institute, Yakutsk, Russia
2Gidrotehproekt Ltd., St. Petersburg, Russia
3St. Petersburg State University, St. Petersburg, Russia
4ANO Training and Consulting Center "Izyskatel", Moscow, Russia
5State Hydrological Institute, St. Petersburg, Russia
Abstract. The probability of heavy rains and river floods is expected to increase with time in the Northern Caucasus region. Densely populated areas in the valleys of small mountainous watersheds already frequently suffer from catastrophic peak floods caused by intense rains at higher elevations. This study aimed at assessing the flood characteristics of several small basins in the piedmont area of the Caucasus Mountains adjacent to the Black Sea coast including ungauged Cemes River in the Novorossiysk city. The Deterministic-Stochastic Modelling System which consists of hydrological model Hydrograph and stochastic weather generator was applied to evaluate extreme rainfall and runoff characteristics of 1% exceedance probability. Rainfall intensity is shown to play more significant role than its depth in formation of extreme flows within the studied region.

Citation: Lebedeva, L. S., Semenova, O. M., Vinogradova, T. A., Kruchin, M. N., and Volkova, N. V.: Evaluating extreme flood characteristics of small mountainous basins of the Black Sea coastal area, Northern Caucasus, Proc. IAHS, 370, 161-165, https://doi.org/10.5194/piahs-370-161-2015, 2015.
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