Journal of The Geomorphological Association of Korea (한국지형학회지)

The Geomorphological Association of Korea (한국지형학회)
권호 표지
DOI QR코드

DOI QR Code

Geomorphological Changes of the Okjukdong Dunefield Over the Last Decade

지난 10년간 대청도 옥죽동 사구의 지형 변화

  • Choi, Kwang Hee (Department of Geography Education, CatholicKwandong University) ;
  • Kong, Hak-Yang (Natural Environment Research Division, National Institute of Environmental Research) ;
  • Park, Sung Min (Natural Environment Research Division, National Institute of Environmental Research)
  • 최광희 (가톨릭관동대학교 지리교육과) ;
  • 공학양 (국립환경과학원 자연환경연구과) ;
  • 박성민 (국립환경과학원 자연환경연구과)
  • Received : 2019.09.16
  • Accepted : 2019.09.30
  • Published : 2019.09.30
⟨ Previous Next ⟩

Abstract

The geomorphological changes of an unvegetated part of the Okjukdong coastal dune were analyzed between 2008 and 2018. Its natural landscape has been destroyed after artificial forestation, but there is no quantitative evidence on these changes. In this study, we measured the unvegetated area using a total station and a network RTK-GPS in 2008, 2014, and 2018. Using Krging method for the three point data sets, we constructed digital elevation models (DEMs) and analyzed topographic changes between the three years. The results showed that the sand of the study area decreased in volume from 2008 to 2014, because sand supply from the nearby beach was blocked by coastal forests. The sand volume temporarily increased from 2014 to 2018, because of the dune nourishment conducted in 2017. It seems that the upper part of the sand dune has shrunk, but the sand at the bottom has increased over the last decade.

Keywords

Acknowledgement

이 연구는 국립환경과학원의 '기후변화에 의한 자연재해위험 저감방안 연구(V) (NIER-RP2017-050)'과제로 수행된 연구입니다. 현장 조사에 도움을 주신 국립환경과학원의 이수용, 최낙훈 님께 감사의 인사를 드립니다.