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An Approach to Numerical Studies of the Hydrology of Don Delta Area

  • WATER RESOURCES AND THE REGIME OF WATER BODIES
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Abstract

Water flow in the Don R. delta is described by a system of Saint-Venant equations written in the characteristic form. The calculation domain is represented as a graph with edges corresponding to channel segments and nodes corresponding to branching points. The problem was solved by finite-difference methods with equations approximated by implicit schemes. The simulated water discharges and flow velocities in major Don delta branches were compared with observation data and showed the adequacy of the model. The model was used to reproduce the pattern of flows in the branches which was observed in the period from September 13 to 15, 2016.

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Funding

This study was carried out as an implementation of the Governmental Order to the Southern Research Center, Russian Academy of Sciences in what regards the analysis of hydrological processes (State Registration АААА-А18-118122790121-5), RFBR scientific project in what regards the development of methods of numerical modeling (18-05-80010 “Studying and Forecasting Hazardous Hydrometeorological and Geological-Geomorphological Processes in the Areas of Functioning of Strategic Objects on the Azov–Black Sea Coast (Historical and Present-Day Aspects).”) The calculations were made in the cluster of TsKP Southern Federal University “High-Performance Calculations.”

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Correspondence to A. L. Chikin.

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Translated by G. Krichevets

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Chikin, A.L., Kleshchenkov, A.V. & Chikina, L.G. An Approach to Numerical Studies of the Hydrology of Don Delta Area. Water Resour 48, 646–653 (2021). https://doi.org/10.1134/S0097807821050079

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  • DOI: https://doi.org/10.1134/S0097807821050079

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