CAJ | 학술논문

利用库尔勒市2005—2013年4—8月逐小时降水量资料分析了当地强降水天气发生的时间、强度特征,从天气预报的角度对强降水天气环流形势进行了分型,找出了产生强降水的触发抬升机制,建立了强降水天气的三种概念模型.研究得到库尔勒强降水影响系统包括低槽或涡东移型、南北低槽汇合型、锋区南压型以及脊前短波槽或西北气流型四类,降水触发机制分为冷锋触发类、干线触发类以及混合触发类三种.结合强降水发生前的影响系统、发生时抬升触发机制和雷暴降水天气形成的动力、水汽、不稳定条件以及强降水落区的显著特征的总结分析,归纳出包括锋区急流类、低涡气旋类以及低槽切变辐合线类三种强降水天气概念模型.
이용고이륵시2005—2013년4—8월축소시강수량자료분석료당지강강수천기발생적시간、강도특정,종천기예보적각도대강강수천기배류형세진행료분형,조출료산생강강수적촉발태승궤제,건립료강강수천기적삼충개념모형.연구득도고이륵강강수영향계통포괄저조혹와동이형、남북저조회합형、봉구남압형이급척전단파조혹서북기류형사류,강수촉발궤제분위랭봉촉발류、간선촉발류이급혼합촉발류삼충.결합강강수발생전적영향계통、발생시태승촉발궤제화뇌폭강수천기형성적동력、수기、불은정조건이급강강수락구적현저특정적총결분석,귀납출포괄봉구급류류、저와기선류이급저조절변복합선류삼충강강수천기개념모형.
Based on the hourly data of precipitation in warm season in Korla, the climate characteristics of occurrence and intensity as well as circulation situations resulting in heavy rain events were analyzed from aspect of weather forecast. The mesoscale of lifting trigger mechanism and the three conceptual model of heavy rain were found. The heavy rain were classified to four influence systems, including east moving trough of low pressure or vortex, the confluent trough from southern and northern, frontal mass south pressing, the short wave trough or southeasterly flow before ridge. There were three trigger mechanisms which were cold-front , dew-point front, the blending type including cold-front and dew-point front. By summary analysis of characteristics of dynamic,water vapor and instability conditions as well as heavy rain distribution, three conceptual models which were jet stream front and low vortex cyclone as well as low trough with shear line or convergence line were concluded.