Recently, a heavy rainfall with high spatial variation occurred frequently in the Korean Peninsula. The meteorological event that occurred in Busan on 3 May 2016 is characterized by heavy rain in a limited area. In order to clarify the reason of large spatial variation associated with mountain height and location of low level jet, several numerical experiments were carried out using the dynamic meteorological Weather Research and Forecasting (WRF) model. In this case study, the raised topography of Mount Geumjeong increased a barrier effect and air uplifting due to topographic forcing on the windward side. As a result, wind speed reduced and precipitation increased. In contrast, on the downwind side, the wind speed was slightly faster and since the total amount of water vapor is limited, the precipitation on the downwind side reduced. Numerical experiments on shifting the location of the lower jet demonstrated that if the lower jet is close to the mountain, its core becomes higher due to the effect of friction. Additionally, the water vapor convergence around the mountain increased and eventually the precipitation also increased in the area near the mountain. Hence, the location information of the lower jet is an important factor for accurately predicting precipitation.

Abstract
1. 서 론
2. 재료 및 방법
    2.1. 연구 대상 지역 및 사례일
    2.2. 수치 모형 설정
    2.3. 실험 설계
3. 결과
    3.1. 수치모델 결과 검증
    3.2. 낮은 산악에 의한 영향 분석
    3.3. 하층제트의 변화에 따른 영향 분석
4. 결 론
REFERENCES

• 채다은(부산대학교 지구과학과) | Da Eun Chae (Department of Earth Science, The Graduate School Pusan National University)
• 김은지(부산대학교 지구과학과) | Eun Ji Kim (Department of Earth Science, The Graduate School Pusan National University)
• 김지선(부산대학교 지구과학과) | Ji Seon Kim (Department of Earth Science, The Graduate School Pusan National University)
• 이순환(부산대학교 지구과학교육과) | Soon-Hwan Lee (Department of Earth Science Education, Pusan National University) Corresponding author