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http://dx.doi.org/10.5574/KSOE.2017.31.1.060

Variation Characteristics of Haeundae Beach using Video Image  

Kang, Tae-Soon (Department of Coastal Management, GeoSystem Research Corp.)
Kim, Jong-Beom (Department of Coastal Management, GeoSystem Research Corp.)
Kim, Ga-Ya (Department of Urban Engineering, Dong-Eui University)
Kim, Jong-Kyu (Department of Naval Architecture and Ocean Engineering, Chonnam National University)
Hwang, Chang-Soo (Coastal Planning and Management Division, Ministry of Oceans and Fisheries)
Publication Information
Journal of Ocean Engineering and Technology / v.31, no.1, 2017 , pp. 60-68 More about this Journal
Abstract
In this study, we analyzed the real time video image obtained from the video monitoring system to grasp the shoreline, beach width, and area change of Haeundae beach. The video monitoring techniques enabled continuous monitoring for a long period at a much lower cost than general survey methods. It was possible to grasp quantitative beach variation characteristics of Haeundae beach through image acquisition, rectification, and image processing of video images. According to the monitoring results, the erosion rate of Haeundae beach in spring and summer was -19.8% in 2014 and -6.7% in 2015. The erosion rate in 2016 was -6.4%, which showed that the erosion rate in spring and summer continued to decrease. In particular, the influence of the erosion at the time of typhoon CHABA was revealed to be smaller than in the past. It can be concluded that these variations were due to beach width expansion by beach nourishment and the installation of submerged breakwaters.
Keywords
Haeundae beach; Video image; Ground control point; Beach nourishment; Erosion;
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Times Cited By KSCI : 6  (Citation Analysis)
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