CAJ | 학술논문

利用常规气象资料、湖北人工气象站和自动气象监测站雨量资料、NCEP 再分析0．5°×0．5°等资料，对锋生函数在2011年6月中上旬梅雨期三次暴雨过程中的作用进行了诊断分析。结果表明：（1）2011年湖北梅雨在单阻型环流场形成和维持的过程中，先后出现了三种不同特征的暴雨过程。三次过程均在中层出现锋生。（2）中层锋生主要由垂直锋生造成，有利于对流不稳定的发生。低层锋生主要由水平锋生造成，有利于水汽输送和辐合抬升。当中层和低层均有锋生，且中层为垂直锋生、低层为水平锋生时，有利于降雨强度的加强。（3）先出现中层锋生后出现低层锋生可能为短时降雨，先出现低层锋生后出现中层锋生可能为长历时降雨。（4）低层的垂直锋消与水平锋生完全抵消说明低层水平辐合不够强，且对流稳定，不利于强降雨的发生。
이용상규기상자료、호북인공기상참화자동기상감측참우량자료、NCEP 재분석0．5°×0．5°등자료，대봉생함수재2011년6월중상순매우기삼차폭우과정중적작용진행료진단분석。결과표명：（1）2011년호북매우재단조형배류장형성화유지적과정중，선후출현료삼충불동특정적폭우과정。삼차과정균재중층출현봉생。（2）중층봉생주요유수직봉생조성，유리우대류불은정적발생。저층봉생주요유수평봉생조성，유리우수기수송화복합태승。당중층화저층균유봉생，차중층위수직봉생、저층위수평봉생시，유리우강우강도적가강。（3）선출현중층봉생후출현저층봉생가능위단시강우，선출현저층봉생후출현중층봉생가능위장력시강우。（4）저층적수직봉소여수평봉생완전저소설명저층수평복합불구강，차대류은정，불리우강강우적발생。
Using the conventional observation data,daily precipitation data of manual observation and auto-matic observation in Hubei Province,NCEP reanalysis data of 0.5°×0.5°,this paper analyzed the effect of frontogenesis function in three intensest rainstorm processes which occurred during the Meiyu period of Hubei Province in June 2011.The results are as follows:(1)The Meiyu process in Hubei in 2011 is of the single-blocking high type,presenting three different types of rainstorm processes,during which the fron-togenesis appears in the mid level of atmosphere.(2 )The frontogenesis of middle atmosphere is mainly triggered by vertical frontogenesis,which is advantageous to the convective precipitation.The frontogene-sis of low level is attributed to the horizontal frontogenesis,which was helpful to convey water vapour and convergence lifting.(3)When the middle level frontogenesis occurs after the low level,there will be the long-time heavy rain;when the middle level frontogenesis occurs before the low level,there will be short-time heavy rain.(4)The vertical frontolysis in low level and the horizontal frontogenesis counteract each other,indicating that the convection in the low level is stable,and the horizontal convergence is not strong,which is not advantageous to occurrence of heavy rains.