CAJ | 학술논문

提利用常规气象观测资料、NCEP 1°×1°格点再分析资料和FY-2D卫星红外云图云顶亮温TBB资料，对贵州2008年5月25-26日（简称08．05）和2010年6月28-29日（简称10．06）初夏两次暖区暴雨天气过程进行对比分析，探讨两次暴雨发生发展的天气学条件差异。结果表明：暖区暴雨形成时，地面均为热低压控制，地面辐合线加强触发暖区暴雨发生；850 hPa低空急流明显加强，暴雨区位于低空急流左前侧。所不同的是：两次暴雨过程中高层影响天气系统不同，08．05暴雨中层影响系统为高原槽，10．06暴雨中层影响系统为两高切变低涡，高层为南亚高压脊。08．05暴雨过程中，多个β中尺度对流单体独立发展逐渐合并为一个α中尺度对流系统，对流云发展旺盛、伸展高度较高、具有混合相层和暖云层剖面结构，属于积状云为主的混合降水。10．06暴雨，经历了两次β中尺度对流系统的发展和减弱，对流云团呈东北-西南向的带状和椭圆状，对流发展高度较低，具有深厚的暖云层，回波在暴雨区持续时间较长，属于层状云和积状云混合降水。通过对两次暴雨触发机制讨论得出，贵州暖区暴雨预报应着眼于影响贵州的低空急流的建立和加强以及地面低压中辐合线的加强锋生。
제이용상규기상관측자료、NCEP 1°×1°격점재분석자료화FY-2D위성홍외운도운정량온TBB자료，대귀주2008년5월25-26일（간칭08．05）화2010년6월28-29일（간칭10．06）초하량차난구폭우천기과정진행대비분석，탐토량차폭우발생발전적천기학조건차이。결과표명：난구폭우형성시，지면균위열저압공제，지면복합선가강촉발난구폭우발생；850 hPa저공급류명현가강，폭우구위우저공급류좌전측。소불동적시：량차폭우과정중고층영향천기계통불동，08．05폭우중층영향계통위고원조，10．06폭우중층영향계통위량고절변저와，고층위남아고압척。08．05폭우과정중，다개β중척도대류단체독립발전축점합병위일개α중척도대류계통，대류운발전왕성、신전고도교고、구유혼합상층화난운층부면결구，속우적상운위주적혼합강수。10．06폭우，경력료량차β중척도대류계통적발전화감약，대류운단정동북-서남향적대상화타원상，대류발전고도교저，구유심후적난운층，회파재폭우구지속시간교장，속우층상운화적상운혼합강수。통과대량차폭우촉발궤제토론득출，귀주난구폭우예보응착안우영향귀주적저공급류적건립화가강이급지면저압중복합선적가강봉생。
Two warm-area heavy rain processes in 25-26 May 2008 (“0805”)and 28-29 June 2010 (“1006”)in Guizhou are analyzed based on the conventional observational data and the NCEP 1°×1°rean-alysis data.The similar and different features of the two processes in early summer in Guizhou are com-pard.The results indicate that there is no cold air but warm low pressure near the surface when the two torrential rains occur.The low-level jet at 850 hPa enhances obviously,and the heavy rain areas are found in the left-front of low-level jet.What’s different is that synoptic systems in middle and high levels in the two rain cases are different.In the “0805”heavy rain process the middle level is affected by plateau trough,but in the “1006”heavy rain case the mid-level system is the shear vortex between two high pres-sures while the high level is affected by South Asia high ridge.In the “0805”heavy rain case,several me-so-βscale convective cells grow up and are combined in to a mesoscale convective syestem (MCS).The convective clouds develop severely.Base reflectivity of vertical cross section of Guiyang Radar shows it has warm cloud layer and mixing liquid phase layer.In the“1006”heavy rain case,the single meso-βscale con-vective cells grow up very quickly,finally into MCS.The convection develops strongly with a deep warm cloud layer.Analyzing their trigger mechanism,it is found that the key points to warm-area heavy rain in Guizhou lie in the building and enhancement of the low-level j et as well as the enhanced frontogenesis of convergence line in the surface low pressure.