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자료유형
학술저널
저자정보
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제20권 제6호
발행연도
2006.12
수록면
54 - 60 (7page)

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This study discusses characteristic of spatiotemporal changes of the sand barrier in the Nakdong estuarine for the last century, focusing on geomorphologic evolution and mobility of sand barriers in the view of coastal engineering. The Nakdong estuarine, the research subject, has a complexly changing natural environment by interaction between ground and marine elements such as ocean wave, tidal current, sediment, etc. Moreover, recently, unnatural geomorphologic changes (e.g., seaside reclamation, new harbor construction, etc.) has been radically increased in this area with increasing desire for coastal development. Because of this, its sand barrier has developed quite unstable condition. Therefore, to identify the development process of geomorphologic changes in this area, required is a close examination on historical characteristics of spatiotemporal changes of the sand barrier in relation to surrounding seaside reclamation and physical environmental changes. This study, based on the marine charts published in between 1927 and 1995 year, analyzes the length and area of the sand barrier for the last hundred years, and investigates the cause of the changes by looking into the change of water depth for the last two years and doing ocean-physical site observations. In conclusion, the sand barrier of the Nakdong estuarine expands toward the open sea by 7.4~26 m in annual average, maintaining a fixed distance of 1,241~1.279 m, and its area is expected to increase about 2.8 k㎡ annually. This is characterized by the wocean wave from the open sea and the discharge of Nakdong River.

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UCI(KEPA) : I410-ECN-0101-2009-559-017668987