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中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (30): 139-143.doi: 10.11924/j.issn.1000-6850.casb16030174

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

一次短时强降水过程的中尺度分析

李 琳1,杨 青1,常泽堃2,郭彩萍1,瞿中友1,王 鑫1   

  1. (1山西省晋中市气象局,山西晋中 030600；2晋中和顺气象局,山西晋中 032700）
  • 收稿日期:2016-03-23 修回日期:2016-04-18 接受日期:2016-04-25 出版日期:2016-10-31 发布日期:2016-10-31
  • 通讯作者: 李琳
  • 基金资助:
    无基金

A Short-term Heavy Rainfall Process: Mesoscale Analysis

Li Lin1, Yang Qing1, Chang Zekun2, Guo Caiping1, Qu Zhongyou1, Wang Xin1   

  1. (1Meteorological Bureau of Jinzhong City, Jinzhong Shanxi 030600;2Heshun Meteorological Bureau of Jinzhong, Jinzhong Shanxi 032700)
  • Received:2016-03-23 Revised:2016-04-18 Accepted:2016-04-25 Online:2016-10-31 Published:2016-10-31

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摘要： 为了提高短时强降水预报准确率，及时为政府提供准确的预报服务，笔者利用常规观测资料和Micaps系统提供的资料，使用天气学诊断和中尺度分析方法，对2015年8月1日夜间发生在山西省中部的短时强降水天气过程进行实况分析、中尺度分析和卫星云图分析。结果表明：强降水出现时间与 850 hPa切变线和地面辐合线移动，以及TBB负值中心的移向相联系；强降水出现在地面幅合线的附近，850 hPa暖切的南侧，200 hPa高空急流分流幅散区的下方；强降水出现的区域与TBB<-52℃区域，以及地面辐合线有很好的对应关系；强降水中心落在TBB值低于-52℃的负中心内。

关键词: 马铃薯, 马铃薯, 连作, 沟垄和覆膜, 生长, 产量和品质

Abstract: The paper aims to improve the forecast accuracy of short-term heavy rainfall, and provide references for the government decision making. By using conventional observation data and information provided by Micaps system, the authors adopted the synoptics diagnosis and mesoscale analysis method to conduct live rain fall, mesoscale and satellite cloud image analysis of the short-term heavy rainfall process occurred on August 1, 2015 in central Shanxi Province. Results showed that: the heavy rainfall appearance time was associated with 850 hPa shear line and the ground convergence line movement, and the moving direction of TBB negative center; heavy rainfall appeared near the ground convergence line, in south of 850 hPa warm shear, and at the bottom of 200 hPa jet and split-flow amplitude area; heavy rainfall appearance area had a good corresponding relationship with the TBB<-52℃ range and the ground convergence line; heavy rainfall center was in negative center with TBB values below -52℃.