Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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Analysis of Gangwon-do Coastline Changes Using Aerial Photograph Immediately after the Liberation

해방 직후 항공사진을 이용한 강원도 해안선 변화 분석

  • Ahn, Seunghyo (Dept. of Civil Engineering, Gangneung-Wonju National University) ;
  • Choi, Hyun (Dept. of Civil Engineering, Kyungnam University) ;
  • Kim, Gihong (Dept. of Civil Engineering, Gangneung-Wonju National University)
  • 안승효 (강릉원주대학교 토목공학과) ;
  • 최현 (경남대학교 토목공학과) ;
  • 김기홍 (강릉원주대학교 토목공학과)
  • Received : 2020.07.02
  • Accepted : 2020.08.07
  • Published : 2020.10.31
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Abstract

Social costs are increasing in Gangwon-do east coast due to coastal erosion. Long-term coastline change information is essential for analyzing this phenomenon. In this study, aerial photographs immediately after liberation are used for 1950's coastline extraction. The study area is from Sokcho Cheongho beach to Yangyang Seorak beach. The aerial photograph is geometrically corrected using DLT(Direct Linear Transformation) method to extract past coastline and compare it with present data. Coastal erosion and deposition areas are calculated in study area. Artificial structures such as harbors and breakwaters have caused changes in ocean currents and sediments from river estuaries. In most cases, the deposition occurred at the southern area of artificial structures and the erosion occurred on surrounding beaches. Coastline information extracted from past aerial photographs can be useful to provide information on long-term changes.

Keywords

References

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