AbstractSuyeong Bay near Suyeong River, which is a well-known and highly populated area that offers attractions such as Haeundae and Gwangalli beaches, was extensively damaged by Typhoon Maemi in 2003. This region is exposed to the effects of global warming such as super typhoons, sea level rise, and heavy rain. Lowlands near river mouths are particularly vulnerable to the dual effects of flooding from heavy rain and storm surge. Therefore, accurate predictions of the interaction between river discharge and storm surge are crucial for the safety of residents. In this study, numerical simulations of storm surge and flooding were conducted using Advanced Circulation Model for Oceanic, Coastal, and Estuarine Water (ADCIRC) under Typhoon Maemi conditions. The model grid represented the characteristics of the bay and the domain of the Suyeong River basin accurately. In addition, an unstructured grid was used, which was driven by tidal forcing at the open boundary and river discharge at the upriver boundary. The results of this study indicate that the influence of storm surge and river discharge resulted in water levels of more than 0.381 m compared to estimates without river discharge. This study also examined the vulnerability of the river mouth using water elevation data combined with river discharge and storm surge. Interaction of river discharge and storm surge in coastal-inlet areas is essential for assessing water safety and developing a safety index for flood events.
Heaps, N.S. 1983. Storm surges, 1967-1982, Geophysical Journal International, 74, 331-376.
Holland, G.J. 1980. An analytic model of the wind and pressure profiles in hurricanes, Monthly Weather Review, 108, 1212-1218.
Hur, D.S., G.S. Yeom, J.M. Kim, and K.S. Bae. 2006. Estimation of storm surges on the coast of Busan, Journal of Ocean Engineering and Technology, 20(3), 37-45.
Korea Hydrographic and Oceanographic Administration. http://www.khoa.go.kr.
Korea Meteorological Administration. http://www.kma.go.kr.
Lee, B.G., G.D. Jo, and D.S. Kim. 1991. A study on the seasonal variations of fresh water distribution and flushing time in Suyong Bay, Journal of the Korean Society of Fisheries Technology, 27(3), 170-177.
Luettich, R.A. Jr., J.J. Westerink, and N.W. Scheffner. 1992. ADCIRC: An Advanced Three-dimensional Circulation Model for Shelves, Coasts and Estuaries. Report 1: Theory and Methodology of ADCIRC-2DDI and ADCIRC-3DL, U.S. Army Corps of Engineers, Dredging Research Program Technical Report DRP-92-6, Vicksburg, Mississippi, 137 p.
Officer, C.B. 1976. Physical Oceanography of Estuaries and Associated Coastal Waters, John Wiley and Sons, New York, 480 p.
Oh, I.S. and S.I. Kim. 1990. Numerical simulation of the storm surges in the seas around Korea, Ocean Science Journal, 25(4), 161-181.
Pawlowicz, R., B. Beardsley, and S. Lentz. 2002. Classical tidal harmonic analysis including error estimates in MATLAB using T_TIDE, Computers and Geosciences, 28(8), 929-937.
Prandle, D., and J. Wolf. 1978. The interaction of surge and tide in the North Sea and River Thames, Geophysical Journal International, 55(1), 203-216.
Weaver, R.J., and D.N. Slinn. 2004. Effect of Wave Forces on Storm Surge, Master's thesis, University of Florida, Gainesville, Florida, 68 p.
Westerink, J.J., J.C. Feyen, J.H. Atkinson, R.A. Luettich, C.N. Dawson, M.P. Powel, J.P. Dunion, H.J. Roberts, E.J. Kubatko, and H. Pourtaberi. 2004. A new generation hurricane storm surge model for southern Louisiana, Bulletin of the American Meteorological Society, in review.
Yoon, J.J., K.C. Jun, J.S. Shim, and K.S. Park. 2012. Estimation of maximum typhoon intensity considering climate change scenarios and simulation of corresponding storm surge, Journal of the Korean Society for Marine Environment & Energy, 15(4), 292-301.