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A Study on Fog Formation and Visibility Estimation in Waterfront Area Using Meteorological Model

수치 대기 모델을 이용한 수변 지역 안개 발생 및 시정 산정에 관한 연구

  • Kim, Eun-ji (Department of Earth Science, Pusan National University) ;
  • Lee, Kang-yeol (Department of Earth Environment System, Pusan National University) ;
  • Park, Chang-hyoun (Institute of Environmental Studies, Pusan National University) ;
  • Lee, Soon-hwan (Department of Earth Science Education, Pusan National University)
  • 김은지 (부산대학교 지구과학과) ;
  • 이강열 (부산대학교 지구환경시스템) ;
  • 박창현 (부산대학교 환경연구원) ;
  • 이순환 (부산대학교 지구과학교육과)
  • Received : 2021.01.04
  • Accepted : 2021.02.04
  • Published : 2021.04.30

Abstract

Fog can have severe impacts on human life (e.g., accidents in transportation systems) because it causes low visibility. Areas prone to fog near the sea or a river require accurate fog forecasts. In this study, we analyzed the characteristics of fog occurrence around Gumi Reservoir, a part of the inland Nakdong River. We also simulated and predicted visibility using the Weather Research and Forecasting (WRF) model. Visibility was estimated using several point measurements and several different methods: Stoelinga and Warner (SW99), Rapid Update Cycle (RUC), the Forecast System Laboratory (FSL), Decision Tree (DT), revised visibility (RVIS) and Gultepe_06 methods. The DT method showed a pattern similar to the observed fog occurrences. In this study, the Gulteppe_06 method produced the best performance under the lowest visibility situation, although there is some discrepancy in microphysics' simulated results, followed by DT and RUC.

Keywords

Acknowledgement

본 연구는 부산대학교 교수 국외 장기 파견지원비에 의하여 연구되었습니다.

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