Abnormal change in Gyeongpo beach shoreline in June of 2012 was illustrated using DGPS (Differential Global Positioning System, resolution < 0.6m) observation and drift experiment. Abrupt change in the shoreline was occurred in the latter part of June, 2012, this change was compared with that in June from 2009 to 2011. In the northern part of the beach, sand accumulated and it made beach extension and movement of the shoreline towards sea compared with that in June from 2009 to 2011. While on the other, in the southern part, the beach was eroded and it formed a steep slope around the southernmost of the beach. The shoreline in the southern part of the beach was shifted more towards land than that in the past. Change in the position of shoreline was higher in the northernmost and southernmost of the beach compared with those in the other parts. Drift in the southern part of the beach moved faster along the beach than that in the northern part of it.

Abstract
 1. 서 론
 2. 자료 및 방법
  2.1. 해안선 위치 측정 및 부표 실험
  2.2. 조위 및 기상 자료
 3. 결과 및 고찰
  3.1. 해안선의 이상 변동
  3.2. 해양기상의 변화
 4. 결 론
 참 고 문 헌

• 이충일(강릉원주대학교 해양자원육성학과) | Chung Il Lee (Department of Marine Bioscience, Gangneung-Wonju National University) Corresponding author
• 정해근(강릉원주대학교 대학원 해양생물공학과) | Hae Kun Jung (Department of Marine Bioscience and Technology, Graduate, Gangneung-Wonju National University)
• 한문희(강릉원주대학교 대학원 해양생물공학과) | Moon Hee Han (Department of Marine Bioscience and Technology, Graduate, Gangneung-Wonju National University)
• 이준형(강릉원주대학교 대학원 해양생물공학과) | Jun-Hyung Lee (Department of Marine Bioscience and Technology, Graduate, Gangneung-Wonju National University)
• 김경렬(서울대학교 지구환경과학부/해양연구소) | Kyung-Ryul Kim (School of Earth and Environmental Sciences, and Research Institute of Oceanography, Seoul National University)