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.

Abstract
1. 서 론
2. 자료 및 방법
    2.1. 관측 자료
    2.2. 연구방법
    2.3. 시정 계산
3. 결과
    3.1. 구미보 안개 특징
    3.2. 수치모의 결과
    3.3. 시정 분석
4. 결 론
감사의 글
REFERENCES

• 김은지(부산대학교 지구과학과) | Eun-ji Kim (Department of Earth Science, Pusan National University)
• 이강열(부산대학교 지구환경시스템) | Kang-yeol Lee (Department of Earth Environment System, Pusan National University)
• 박창현(부산대학교 환경연구원) | Changhyoun Park (Institute of Environmental Studies, Pusan National University)
• 이순환(부산대학교 지구과학교육과) | Soon-hwan Lee (Department of Earth Science Education, Pusan National University) Corresponding author