˜e purpose of this study is to identify the characteristic synoptic patterns of the spring (March to May) heavy rainfall events over Mt. Halla by the approach type of the warm conveyor belts around migratory extratropical cyclones. Analyses of synoptic atmospheric conditions show that the spring warm conveyor belts in the form of low-level jets appear at lower elevation than that in summer. Most of spring heavy rainfall events over Mt. Halla at the warning stages or watch result from forward-sloping ascent warm conveyors belts accompanying active convection. Particularly, the spring heavy rainfall events at the warning level over Mt. Halla is intensified by the elongation of the foreward-sloping ascent warm conveyor belts when the east high-west low pressure systems, the upper level jet in the northern region- southwesterly low level jet and the migratory low pressure system at mature stage heading for the Korean Peninsular are combined. These findings can be used in improving the predictability of the spring heavy rainfall events over Mt. Halla.

1. 서론
 2. 연구자료 및 연구방법
 3. 결과 및 고찰
  1) 봄철 한라산 호우일의 종관 기후요소의 상관성
  2) 온난수송대 접근 유형별 한라산 호우 발생 사례일의 종관 상태
 4. 요약 및 결론
 사사
 References

• 오영숙(제주지방기상청 기후과) | Young-Sook Oh
• 최광용(제주대학교 지리교육전공) | Gwangyong Choi Correspondence