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Numerical Modeling of Meteotsunami–Tide Interaction in the Eastern Yellow Sea

1
Marine Disaster Research Center, Korea Institute of Ocean Science & Technology, Busan 49111, Korea
2
Rural Research Institute, Korea Rural Community Corporation, Ansan 15634, Korea
3
Emergency Management Office, Korea Hydro & Nuclear Power Co., Ltd., Gyeongju 38120, Korea
4
Department of Civil Engineering, Kangwon National University, Samcheok 25913, Korea
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(7), 369; https://doi.org/10.3390/atmos10070369
Received: 24 May 2019 / Revised: 28 June 2019 / Accepted: 1 July 2019 / Published: 2 July 2019
(This article belongs to the Special Issue Weather and Climate Extremes: Current Developments)
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Abstract

Meteotsunamis originating from atmospheric pressure disturbances have frequently occurred in oceans worldwide and their destructive long waves have recently threatened local coastal communities. In particular, meteotsunamis occurring in the Yellow Sea caused unexpected casualties and property damage to local communities on the western coast of the Korean Peninsula in 2007 and 2008. These events attracted the attention of many engineers and scientists because abrupt extreme waves have struck several coasts and ports even under fine weather conditions. Furthermore, the Yellow Sea has the highest tide and most powerful tidal currents in the world, and consequently, meteotsunami events there could be more destructive and harmful to local coastal communities when such events occur during high tide or a critical phase with strong tidal currents. In this study, numerical experiments were conducted to identify the qualitative effect of the interaction between a meteotsunami and the tide on the generation and amplification mechanisms of meteotsunamis occurring in the Yellow Sea. In general, small-scale meteotsunamis, such as those that occur in the Yellow Sea, should be analyzed using a high-resolution modeling system because water motions can be affected by local terrain. To achieve this objective, high-resolution atmospheric modeling was conducted to reproduce the atmospheric pressure disturbances observed in the Yellow Sea; then, the generation and propagation of the meteotsunami over real topographies was simulated using a phase-resolving wave model. Both an atmospheric model (Weather Research and Forecasting Model (WRF)) and a shallow water equation model (COrnell Multigrid COupled Tsunami Model (COMCOT)) were employed to simulate the generation and transformation of the meteotsunami. View Full-Text
Keywords: meteotsunami; tide; atmospheric model; phase resolving wave model; nonlinear interaction meteotsunami; tide; atmospheric model; phase resolving wave model; nonlinear interaction
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Heo, K.-Y.; Yoon, J.-S.; Bae, J.-S.; Ha, T. Numerical Modeling of Meteotsunami–Tide Interaction in the Eastern Yellow Sea. Atmosphere 2019, 10, 369.

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