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1 March 2016 Morphological Change near Artificial Reefs as a Beach Erosion Countermeasure
Kyu-Han Kim, Kyu-Tae Shim, Bumshick Shin
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Kim, K.H.; Shim, K.T., and Shin, B.S., 2016. Morphological Change near the Artificial Reefs as a Beach Erosion Countermeasure. 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. 403–407. Coconut Creek (Florida), ISSN 0749-0208.

At the Namhangjin Coast on the eastern coast of South Korea, there are five artificial reefs constructed as a form of countermeasure to prevent beach erosion. Since the construction, severe beach erosion has not occurred, and due to the presence of the artificial reefs various sedimentation effects have taken place. However, inside the opening gaps between the artificial reefs, the occurrences of return flow and severe scouring have been observed. In this field investigation the effects of one of the six artificial reefs, installed particularly for abalone, seaweed and fish farming, have been reviewed. Furthermore, the effects of the artificial reefs and their ensuing problems were investigated via three-dimensional movable-bed experiment. In the experiment, to improve the performance the artificial reefs, the impacts of raising the crown height and style of the reefs were examined. The numerical model has successfully explained the various implications of the three-dimensional experiment and the field investigation, and has confirmed the fact that there exists a shared agreement.

©Coastal Education and Research Foundation, Inc. 2016
Kyu-Han Kim, Kyu-Tae Shim, and Bumshick Shin "Morphological Change near Artificial Reefs as a Beach Erosion Countermeasure," Journal of Coastal Research 75(sp1), 403-407, (1 March 2016).
Received: 15 October 2015; Accepted: 15 January 2016; Published: 1 March 2016
beach erosion
beach nourishment
coastal process
return flow
wave attenuation
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