CAJ | 학술논문

提2012年7月7日黄淮出现一次典型暖区大暴雨过程，降水持续时间长、强度大和强降水范围集中，中尺度特征明显。本文通过常规和非常规观测、NCEP分析资料对该次黄淮暖切变线引发的豫东北、鲁南和苏北等地大暴雨天气过程的成因进行探讨，结果表明：整层高湿环境有利于降低暖区暴雨对抬升条件的要求、提高降水效率和局地不断产生中尺度对流系统；低层垂直风切变和超低空急流在对流触发和维持中可能有重要作用；次天气及以下尺度的抬升条件，如地面辐合线、925和850 hPa切变和低空急流出口区的风速辐合等均可导致强降水，降水落区一般位于低层多层风速辐合的叠置区；暖区暴雨的雷达回波具有明显的后向传播、列车效应和热带降水型特点。
제2012년7월7일황회출현일차전형난구대폭우과정，강수지속시간장、강도대화강강수범위집중，중척도특정명현。본문통과상규화비상규관측、NCEP분석자료대해차황회난절변선인발적예동북、로남화소북등지대폭우천기과정적성인진행탐토，결과표명：정층고습배경유리우강저난구폭우대태승조건적요구、제고강수효솔화국지불단산생중척도대류계통；저층수직풍절변화초저공급류재대류촉발화유지중가능유중요작용；차천기급이하척도적태승조건，여지면복합선、925화850 hPa절변화저공급류출구구적풍속복합등균가도치강강수，강수락구일반위우저층다층풍속복합적첩치구；난구폭우적뢰체회파구유명현적후향전파、열차효응화열대강수형특점。
A severe typical warm sector torrential rain with the obvious mesoscale characteristics of long lasting and concentrating precipitation area attacked Huanghuai Region on July 7 2012.The formation of the warm sector torrential rain induced by the Huanghuai warm wind shear line is discussed based on con-ventional and unconventional observation data and NCEP analysis data.The results showed that the whole troposphere with high humidity is beneficial to weaken the lifting condition,enhance precipitation efficien-cy and formation of quasi-stationary mesoscale convective systems.Vertical wind shear in low troposphere and extra low-altitude j et flow are likely to play an important role in triggering and maintaining the convec-tion.Subsynoptic and mesoscale lift conditions such as surface wind convergence line,shear line at 850 hPa or 925 hPa and wind convergence brought by the low level jet can lead to the torrential rain. Meanwhile,the radar echo represents the backward propagation,train effects and tropical heavy rainfall characteristics.