Storm Surge in the Tagenrog Bay and Flooding of the Don Delta

V. V. Fomin1,2, D. I. Lazorenko1, D. V. Alekseev1, A. A. Polozok2

1 Marine Hydrophysical Institute of RAS, Sevastopol, Russia

2 Sevastopol Branch of the Zubov State Oceanographic Institute, Sevastopol, Russia

Abstract

Mechanisms of the Don estuary flooding were studied using numerical models ADCIRC + SWAN calculations of storm surges and wind waves in the Taganrog Bay of the Sea of Azov. The model was implemented on unstructured high resolution grid. Spatially homogeneous wind field of different directions and the wind field model corresponding to the storm on 24-25 September 2014 were used as the atmospheric forcing. It was demonstrated that the flooding takes place at wind speeds of at least 15 ms -1 and wind waves crests add approximately 0,3 m to the overall rise of sea level in the area of the Don estuary.

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