Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
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Characteristics of Surface Topography Variation on the Gochang Beach, Southwestern Coast of Korea

한국 서남해안 고창 해빈의 표층 지형 변화 특성

  • Kang, Sol-Ip (Division of Science Education and Institute of Science Education, Chonbuk National University) ;
  • Ryang, Woo-Hun (Division of Science Education and Institute of Science Education, Chonbuk National University) ;
  • Chun, Seung-Soo (Faculty of Earth Systems and Environmental Sciences, Chonnam National University)
  • 강솔잎 (전북대학교 과학교육학부/과학교육연구소) ;
  • 양우헌 (전북대학교 과학교육학부/과학교육연구소) ;
  • 전승수 (전남대학교 지구환경과학부)
  • Received : 2015.07.04
  • Accepted : 2015.10.27
  • Published : 2015.10.30
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Abstract

The Gochang beach is located in the southwestern coast of Korea along the eastern part of the Yellow Sea, comprising the Donghori, Gwangseungri, and Myeongsasipri beaches from north to south. The Gochang beach is characterized by macro-tide, open-coast, linear shoreline, and sand substrates. This study has investigated annual and seasonal characteristics of surface topography variation and sediment accumulation rate in the Gochang beach. During the five seasons of winter (Feb.), spring (May), summer (Aug.), and fall (Nov.) in 2014 and winter (Feb.) in 2015, the topographic elevation of total 315 sites was measured along three survey lines. It consists of 21 sites at 30 m intervals in each transverse line perpendicular to the shoreline, respectively. Annual accumulation rate of the Gochang beach in 2014 was -0.081 m/yr, indicative of erosional condition. Annual accumulation rates of the comprising beaches represent -0.091m/yr of the Donghori, -0.051 m/yr of the Gwangseungri, and -0.10 m/yr of the Myeongsasipri.

고창 해빈은 황해의 동편, 한국 서남해 연안에 위치하며, 북쪽에서 남쪽 방향으로 동호리, 광승리, 명사십리 해빈으로 구성된다. 고창 해빈은 대조차, 개방형, 직선형 해안, 모래 저질의 특징을 보인다. 본 연구는 고창 해빈에서 표층 지형 변화와 퇴적물 집적률의 연평균과 계절 특성을 연구하였다. 2014년 겨울(2월), 봄(5월), 여름(8월), 가을(11월)과 2015년 겨울(2월)의 5계절 동안, 3개 측선을 따라 총 315개 지점에서 지형 고도를 측정하였다. 해안선에 수직인 각 측선은 30 m 간격의 21 지점으로 구성된다. 고창 해빈의 2014년 연평균 집적률은 -0.081 m/yr로 침식이 우세하였다. 지역별 연평균 집적률은 동호리 해빈 -0.091 m/yr, 광승리 해빈 -0.051 m/yr, 명사십리 해빈 -0.10 m/yr로 나타났다.

Keywords

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