Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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A Review on the Vertical Coordinate Systems used in Oceanic and Atmospheric Circulation Numerical Model

해양 및 대기 순환 수치모델에 사용하는 연직 좌표계에 대한 고찰

  • HyukJin Choi (Coast and Ocean Technology Research Institute) ;
  • Shin Taek Jeong (Coast and Ocean Technology Research Institute) ;
  • Hong-Yeon Cho (Marine Bigdata and AI Center, Institute of Ocean Science and Technology, Univ. of Science and Technology) ;
  • Dong-Hui Ko (Ocean Space Development and Energy Research Department, Korea Institute of Ocean Science and Technology)
  • 최혁진 ((주)해안해양기술) ;
  • 정신택 ((주)해안해양기술) ;
  • 조홍연 (한국해양과학기술원 해양빅데이터.AI센터) ;
  • 고동휘 (한국해양과학기술원 해양공간개발.에너지연구부)
  • Received : 2024.07.29
  • Accepted : 2024.08.23
  • Published : 2024.08.31
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Abstract

In a numerical method for the study of the circulation model, various vertical coordinate systems are used to simulate the physical response of the ocean and atmosphere to the increasing greenhouse gas emission. In this study, four types of vertical coordinate systems frequently used in oceanic and atmospheric circulation numerical models, i.e., height, general, pressure, and normalized vertical coordinate systems, respectively are introduced. Finally, the hydrostatic pressure equation, vertical velocity, equation of horizontal motion, and continuity equation expressed in a vertical coordinate system were introduced, and the pros and cons of the vertical coordinate system were summarized to promote the accuracy of numerical model development.

순환 모델 연구를 위한 수치 방법에서는, 증가하는 온실가스 배출에 대한 해양과 대기의 물리적 반응을 모의하기 위해 다양한 연직 좌표계를 사용한다. 본 연구에서는 해양 및 대기 순환 수치모델에 자주 사용하는 4종류의 연직좌표계, 즉 고도, 일반, 압력, 그리고 무차원 연직좌표계에 대하여 소개한다. 최종적으로, 연직좌표계로 표현된 정수압 방정식, 연직속도, 수평방향 운동방정식, 그리고 연속방정식을 도입하고, 연직좌표계에 대한 장단점을 정리하여, 수치모형 개발 정확성을 도모하였다.

Keywords

References

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