CAJ | 학술논문

提2010年7月和2011年6月江南和华南地区出现了两次强降水过程，分别属于梅雨锋和季风槽暴雨过程。本文利用常规观测资料、NCAR／NCEP再分析资料和卫星水汽图像对比分析了这两次暴雨过程。分析结果表明：这两次暴雨过程的发生既有相似点，又有不同之处。水汽图像显示这两次暴雨过程中都有一条水汽带，暴雨云团均发生在水汽带中，并与低层850 hPa的θse≥350 K脊轴近于重合。江南暴雨过程中水汽带的北部边界与700 hPa的上升运动带、200 hPa的辐散带和负涡度带近于平行，强对流云团与低层上升运动中心和高层的辐散中心大致吻合；而华南暴雨过程中并无明显此特征。位涡的分析表明在华南暴雨中暗区对应对流层高层的高位涡带，水汽带对应低位涡带；而在江南暴雨中，高位涡带与暗区的对应没有华南暴雨明显。水汽图像上的干、湿特征的异同与环境场不同密切相关。
제2010년7월화2011년6월강남화화남지구출현료량차강강수과정，분별속우매우봉화계풍조폭우과정。본문이용상규관측자료、NCAR／NCEP재분석자료화위성수기도상대비분석료저량차폭우과정。분석결과표명：저량차폭우과정적발생기유상사점，우유불동지처。수기도상현시저량차폭우과정중도유일조수기대，폭우운단균발생재수기대중，병여저층850 hPa적θse≥350 K척축근우중합。강남폭우과정중수기대적북부변계여700 hPa적상승운동대、200 hPa적복산대화부와도대근우평행，강대류운단여저층상승운동중심화고층적복산중심대치문합；이화남폭우과정중병무명현차특정。위와적분석표명재화남폭우중암구대응대류층고층적고위와대，수기대대응저위와대；이재강남폭우중，고위와대여암구적대응몰유화남폭우명현。수기도상상적간、습특정적이동여배경장불동밀절상관。
Two severe rainfall processes happened in the south of the lower reaches of the Yangtze River and South China in July 2010 and June 2011,respectively,which were caused by the Meiyu front and mon-soon trough separately.Conventional observation data,NCAR/NCEP reanalysis data and satellite water vapor imageries are used to analyze the two severe rainfall events.The results show that the two cases have something in common,but also some differences.The water vapor imagery shows that both of the two cases have the water vapor band.The rainstorm cloud clusters all occur in the water vapor bands no matter how the water vapor patterns change.A highθse tongue (θse≥350 K)at 850 hPa maintains within and in parallel to the direction of the water vapor band during the two heavy rainfall periods.In the former case,the dark area on the north border of the water vapor band is corresponding to an updraft belt at 700 hPa,a divergence area and a negative vorticity area at 200 hPa.The strong convective clouds are near-ly coincided with the center of the upward motion at low-level and the convergence center in high-level. However,in the latter case,there are no such evident characteristics.The analysis on potential vorticity (PV)indicates that the dark areas are corresponding to high band of PV in the upper troposphere while the <br> water vapor band is corresponding to low band of PV in the later case.As to the former case,the corre-spondence of high band of PV and dark areas is not as evident as in the later case.The similarities and differences of dry and moist characteristics on the satellite water vapor images are closely related to the dif-ferent large-scale ambients.