ABSTRACT

Lee, W.D., Kim, I.H., Yoon, J.S., Cho, W.C. and Hur, D.S., 2016. Analysis of beach deformation according to nourishing sand in haeundae beach, Korea. In: Vila-Concejo, A.; Bruce, E.; Kennedy, D.M., and McCarroll, R.J. (eds.), Proceedings of the 14th International Coastal Symposium (Sydney, Australia). Journal of Coastal Research, Special Issue, No. 75, pp. 1372 - 1376. Coconut Creek (Florida), ISSN 0749-0208.

This study has analyzed the beach deformation characteristics of Haeundae Beach, which is one of the most representative beaches of S.Korea, after beach nourishment through monitoring and performing a numerical simulation. This study was able to analyze the beach deformation characteristics after beach nourishment in depth (e.g. variations in coastline, beach profile and the area and volume of beach, and beach stabilization process) in line with the results of marine geophysical survey (Do et al., 2015). This study surveyed the marine morphological changes around Haeundae Beach caused by Typhoon Neoguri, but morphological changes did not show in the water level of over 3m. In addition, this study was not only able to identify the short-term advance and retreat of coastline in the beach profile due to Typhoon Neoguri, but also understand this phenomenon on the basis of the results of wave field analysis using Numerical Wave Tank (NWT). Furthermore, this study was able to find that NWT and the coupling calculation of Contour-line model simulated the changes of coastline due to Typhoon Neoguri almost similarly. NWT and the coupling calculation of Contour-line based on long-term monitoring are expected to greatly contribute to understanding the beach deformation characteristics due to beach nourishment in future.

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