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Article information
2019 , Volume 24, ¹ 2, p.78-89
Klevannyy K.A., Sokolov A.A., Romanskiy S.O.
Analysis of storm surge generated by typhoon Lionrock on the coast of Primorski Krai in August - September 2016 using the numerical modelling
The main goal of the work is the analysis of storm surges on the coast of primorski krai in august-september 2016 caused by typhoon lionrock. This study is conducted using hydrodynamic modelling. The basis of modelling is the program cardinal and numerical model of the sea of japan built on shallow water equations in two-dimensional space. Input pressure and wind fields for the oceanographic model are simulated by operational regional forecasting model wrf-arw. In general, the numerical model of the sea of japan with the mentioned input pressure and wind fields simulate well variations of sea level during the passage of typhoon lionrock. The scheme of simulated sea currents is obtained. During the whole period of calculation the direction of a flow on the area of peter the great gulf and posyet bay was southwest and it is led to a significant sea level rising alongshore of these bays. When the typhoon came to the sea of japan the sea level was rising in the open part of the sea due to drop of atmospheric pressure. However, the rise in the level at sosunovo was not modelled and the rise in the level in vladivostok, observed from the noon on august 30 until the morning of august 31, was significantly underestimated. Tuning the model (doubling of wind coefficient, decreasing of time step, decreasing of meteorological values assimilation time step from three to one hour, use of different variants of wrf model, use of observed data on the open boundaries instead of simulated data of tpxo v. 7.2) Has not changed results significantly. The tide-gauge of vladivostok is located in the long and narrow zolotoi rog bay, into which the ob’yasnenie river and the entire runoff from the adjacent hills of vladivostok flow. The tide-gauge in sosunovo is located at the mouth of the svetlaya river, 500 m from the sea shore. Probably, in both cases, local effect on the level was due to locking discharge of rivers by wind and the anomalous flow of rainwater.
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Keywords: storm surges, typhoon Lionrock, mathematical modelling, program system CARDINAL, Sea of Japan
doi: 10.25743/ICT.2019.24.2.007
Author(s):
Klevannyy Konstantin Alekseevich
Dr.
Position: General Expert
Office: CARDINAL-soft LLC
Address: 192212, Russia, St-Petersburg
Phone Office: (812) 533 1022
E-mail: kklevannyy@mail.ru
SPIN-code: 9568-6959Sokolov Anton Alexandrovich
PhD.
Position: Research Scientist
Office: Institute of Numerical Mathematics RAS
Address: 119991, Russia, Moscow, ul. Gubkina, 8.
Phone Office: (095) 938 39 17
E-mail: saa@isa.ru
Romanskiy Stanislav Olegovich
PhD.
Position: Senior Research Scientist
Office: Far Eastern Regional Hydrometeorological Research Institute
Address: 690091, Russia, Vladivostok, 24, Fontannaya St
Phone Office: (914) 197 9224
E-mail: sromanskiy@khbr.meteorf.ru
SPIN-code: 6967-4124 References:
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Bibliography link:
Klevannyy K.A., Sokolov A.A., Romanskiy S.O. Analysis of storm surge generated by typhoon Lionrock on the coast of Primorski Krai in August - September 2016 using the numerical modelling // Computational technologies. 2019. V. 24. ¹ 2. P. 78-89
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