陈红玉, 钟爱华, 黄慧君, 杨鸥. 2012年初夏云南大理首场强降水天气诊断分析[J]. 云南大学学报(自然科学版), 2013, 35(S2): 254. doi: 10.7540/j.ynu.20120730
引用本文: 陈红玉, 钟爱华, 黄慧君, 杨鸥. 2012年初夏云南大理首场强降水天气诊断分析[J]. 云南大学学报(自然科学版), 2013, 35(S2): 254. doi: 10.7540/j.ynu.20120730
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Early summer of 2012 analysis of the first diagnosis of heavy precipitation weather in Dali,Yunna[J]. Journal of Yunnan University: Natural Sciences Edition, 2013, 35(S2): 254. DOI: 10.7540/j.ynu.20120730
Citation: Early summer of 2012 analysis of the first diagnosis of heavy precipitation weather in Dali,Yunna[J]. Journal of Yunnan University: Natural Sciences Edition, 2013, 35(S2): 254. DOI: 10.7540/j.ynu.20120730
shu

2012年初夏云南大理首场强降水天气诊断分析

Early summer of 2012 analysis of the first diagnosis of heavy precipitation weather in Dali,Yunna

    摘要
  • 摘要: 应用常规观测资料、卫星云图、风廓线雷达资料以及NCEP1°×1°再分析资料，对2012年5月29日至30日发生在云南省大理州的首场区域性暴雨天气进行分析，结果表明：700hPa切变线是这次降水的主要天气系统，高空冷平流的入浸触发了长时间的晴热天气积蓄的充足能量；卫星云图上强降水云团在夜间发展 ，白天消失，与云贵高原多夜雨的特征一致；强降水发生区域的上空对流活动旺盛、大气层结极不稳定；水汽辐合明显，且有强烈的上升运动；风廓线雷达资料的信噪比和垂直速度有反映，但特征不是非常明显，可能与大理本站的降雨强度不大有关；水平风垂直变化上明显反映出高空冷平流的入浸时间及持续时间.

     

    Abstract: Application general observation information,and satellite imagery,and wind profile line radar information and NCEP 1 ° X1 ° again analysis information,on May 29,2012 to 30th occurred in Yunnan province Dali of first culture storm weather for analysis,results indicates that:700hPa shear line is this precipitation of main weather system,height cold flat flow of into dip triggered has long time of fine hot weather savings of adequate energy;satellite imagery Shang strong precipitation clouds in night development,day disappear,and Yunnan-Guizhou plateau more night rain of features consistent ;Heavy rain in regions of strong convective activity,atmospheric structure far from stability;water vapour convergence significantly,rising and there is a strong sense of movement.

     

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