접합모형을 이용한 서해안의 폭설에 미치는 대기-해양 상호작용의 효과에 대한 수치 연구

Abstract

This study aims to examine the favorable conditions for rapid developing mesocyclone in a snowstorm across the Yellow Sea over the southwestern coast of Korea on 4 December 2005, using a coupled model with a Coupled Ocean/Atmosphere Mesoscale Prediction System as the atmospheric component and the Regional Ocean Modeling System as the oceanic component. The air-sea coupling results in important structural modifications for the amount of snowfall. A decrease in the SST during the development of the mesocyclone causes an increase in the maximum snowfall amount near its center. We can conclude that another mechanism of enhanced snowfall is found in addition to upward motion. The increased ascending motion allows a more upward transport of low-level moisture and then a more intense convective activity and more snowfall