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KMID : 1024520110200111425
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Journal of the Environmental Sciences
2011 Volume.20 No. 11 p.1425 ~ p.1435
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Time-series Change in Gyeongpo Beach Shoreline in 2009 and 2010
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Lee Chung-Il
Han Moon-Hee
Jung Hae-Kun
Kim Sang-Woo
Kwon Ki-Young
Jeong Hee-Dong
Kim Dong-Sun
Park Sung-Eun
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Abstract
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Time-series change in Gyeongpo beach shoreline was illustrated using DGPS(Differential Global Positioning System, resolution < 0.6m) observation from April, 2009 to April, 2010. The shoreline was subdivided into 12 areas, and westward and eastward movement of shoreline position at each area was calculated. In general, the shoreline moved toward sea during summer, and it moved toward land during winter. The southern and northern part of the shoreline had different pattern in time-series. The shoreline in the southern part moved toward sea during summer and moved toward land during winter, but time-series pattern of the shoreline in the northern part was more complicated than that in the southern part. Pattern of time-series change in the northern part was made up of three different types; the first is that the shoreline moves continuously toward land, and the second thing is that the shoreline's movement is the opposite to the southern part, and the third thing is that the shoreline maintains a state of equilibrium without any great fluctuation. The total length of the shoreline was the largest during winter and the smallest during summer. In general, time-series change in the shoreline had positive(+) relationship with sea surface pressure and wind speed.
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KEYWORD
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DGPS, Gyeongpo beach, Shoreline, Time-series change
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