Journal of Coastal Disaster Prevention (한국연안방재학회지)

Korean Society of Coastal Disaster Prevention (한국연안방재학회)
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Analysis of Seasonal Morphodynamic Patterns using Delft3D in Anmok Coast

수치모델링을 통한 안목해안에서 계절에 따른 지형변동 패턴 분석

  • Kim, Mujong (Marine Disaster Research Center, Korea Institute of Ocean Science & Technology) ;
  • Son, Donghwi (Marine Disaster Research Center, Korea Institute of Ocean Science & Technology) ;
  • Yoo, Jeseon (Marine Disaster Research Center, Korea Institute of Ocean Science & Technology)
  • 김무종 (한국해양과학기술원 해양재난.재해연구센터) ;
  • 손동휘 (한국해양과학기술원 해양재난.재해연구센터) ;
  • 유제선 (한국해양과학기술원 해양재난.재해연구센터)
  • Received : 2018.07.04
  • Accepted : 2018.10.04
  • Published : 2018.10.31
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Abstract

In recent years, coastal areas have been suffering from coastal erosion, such as destruction of coastal roads and military facilities. In this study, the Delft3D model was used to analyze the sediment transport pattern due to seasonal characteristics of summer and winter waves in Anmok beach of the East coast. Typhoon and high waves are mainly are coming from ENE direction in the summer season and the flows occur in the northward. In winter, high waves are incident from NE and the flows occur in the southward. These seasonal patterns were simulated by using Delft3D model. As for model input, reanalysis wave data of the past 38 years were used, and the seasonal patterns were analyzed by dividing the whole year into summer and winter season. The grid point of the 38 year reanalysis data is far from the Anmok beach, so the three model grid systems (wide grid -> intermediate grid -> detailed grid) are constructed. Most of the flows in the NW direction occurred in summer, but erosion and deposition was alternated along the coastline. In winter, sediment was deposited near Gangnung Port due to the southern flow and the southern port. Strong winter waves compared to summer tend to cause deposition around Gangnung Port throughout the year.

Keywords

Acknowledgement

Grant : 연안침식 대응기술 개발, 종합해양과학기지 구축 및 활용연구

Supported by : 한국해양과학기술원

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