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Time-series Change in Gyeongpo Beach Shoreline in 2009 and 2010

2009-2010년 경포 해수욕장 해안선의 시계열 변화

  • Lee, Chung-Il (Dept. of Marine Bioscience, Gangneung-Wonju National University) ;
  • Han, Moon-Hee (Dept. of Marine Bioscience, Gangneung-Wonju National University) ;
  • Jung, Hae-Kun (Dept. of Marine Bioscience, Gangneung-Wonju National University) ;
  • Kim, Sang-Woo (Fisheries Resources and Environment Division, East Sea Fisheries Research Institute) ;
  • Kwon, Ki-Young (Fisheries Resources and Environment Division, East Sea Fisheries Research Institute) ;
  • Jeong, Hee-Dong (Fisheries Resources and Environment Division, East Sea Fisheries Research Institute) ;
  • Kim, Dong-Sun (Research Center for Ocean Industrial Development, Pukyong National University) ;
  • Park, Sung-Eun (Marine Environmental Research Division, National Fisheries Research & Development Institute)
  • 이충일 (강릉원주대학교 해양자원육성학과) ;
  • 한문희 (강릉원주대학교 해양자원육성학과) ;
  • 정해근 (강릉원주대학교 해양자원육성학과) ;
  • 김상우 (국립수산과학원 동해수산연구소) ;
  • 권기영 (국립수산과학원 동해수산연구소) ;
  • 정희동 (국립수산과학원 동해수산연구소) ;
  • 김동선 (부경대학교 해양산업개발연구소) ;
  • 박성은 (국립수산과학원 어장환경과)
  • Received : 2011.08.18
  • Accepted : 2011.10.21
  • Published : 2011.11.30

Abstract

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.

Keywords

DGPS;Gyeongpo beach;Shoreline;Time-series change

Acknowledgement

Grant : 동해시계열 관측 및 생태 환경 진단(EAST-1)

Supported by : 한국해양과학기술진흥원

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