CAJ | 학술논문

利用常规观测资料、NCEP 1°×1°再分析资料、新一代天气雷达资料，对2012年3月6日-7日福建省北部地区暴雨成因进行诊断分析。结果表明：此次降水过程在高空西风槽南下带来的冷空气与西南暖湿气流交汇的背景下产生，暴雨区位于低空西南急流北侧、低层切变南侧、地面冷锋附近；强降水落区位于层结不稳定的湿区中，低层辐合、高层辐散有利于对流发展；干冷空气的侵入时高层高值位涡库向北向下伸展，促使中低层气旋涡度发展，从而导致强降水的发生；雷达回波分析表明，低层暖平流、高层冷平流、区域上空辐合形势都有利于对流性降水的产生。
이용상규관측자료、NCEP 1°×1°재분석자료、신일대천기뢰체자료，대2012년3월6일-7일복건성북부지구폭우성인진행진단분석。결과표명：차차강수과정재고공서풍조남하대래적랭공기여서남난습기류교회적배경하산생，폭우구위우저공서남급류북측、저층절변남측、지면랭봉부근；강강수락구위우층결불은정적습구중，저층복합、고층복산유리우대류발전；간랭공기적침입시고층고치위와고향북향하신전，촉사중저층기선와도발전，종이도치강강수적발생；뢰체회파분석표명，저층난평류、고층랭평류、구역상공복합형세도유리우대류성강수적산생。
Basing on the conventional observational data, NCEP l~xl ~reanalysis data, the new generation weather radar data, the rainstorm occurred in the north of Fujian province at March 6-7,2012 was analyzed. It shows that the precipitation process occurs in the intersection of the southwest warm air and the cold air accompanied the upper westerly trough moving south. Heavy rain area is located in the north side of the low-level southwest jet, the south side of low-level wind shear, near to the surface cold front. The strong precipitation area is located in the stratification instability of the wet zone, where the low-level convergence and upper-level divergence are con- ducive to the development of convection. With the dry cold air intrusion, the high-level high value potential vor- tex stretches northward and downward, causing the development of the low-level vortex. And the radar echo anal- ysis shows that the low-level warm advections, the high-level cold advection, and the convergence situation over the region are all conducive to the generation of convective precipitation.