湖北省集中暴雨特征分析
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P458.121.1

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湖北省氣象局“災害性暴雨研究”課題資助


Characteristic Analysis of Concentrated Heavy Rainfall in Hubei Province
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    摘要:

    定義了湖北省集中暴雨的標準。對1954年以來發生在湖北省的符合標準的12個集中暴雨過程作了詳盡的分析,發現集中暴雨為3場以上的暴雨組成:第1場為冷鋒暴雨,即東亞大槽建立形成的暴雨,強度較弱;第2場為高原渦(槽)疊在切變線和露點鋒上形成的暴雨,強度較強,常常為特大暴雨,或有較弱暴雨夾在其中;第3場為低槽形成的暴雨,強度較弱。歸納出了集中暴雨的環境條件,大中尺度天氣學特征,得出了一些有用的結論,對湖北集中暴雨的預報有參考價值。

    Abstract:

    The standards of concentrated heavy rainfall in Hubei Province are defined. There occurred 12 cases of concentrated heavy rainfall in the range of the standards in Hubei Province since 1954, of which the detailed analysis is made, It is showed that concentrated heavy rainfall usually consists of three or more heavy rain events. The first is cold-front heavy rain, which forms in the process of East-Asia trough building-up and weakening. The second occurs in the eastward-moving process of the Qinghai-Tibet Plateau vortex, which is superimposed above the dew-point front. It is usually severe heavy rainfall. The third is low-trough heavy rainfall, relatively weak. The environmental conditions and large- and meso-scale synoptic features for concentrated heavy rainfall are summed up. The results are useful for the short- and medium-range heavy rain forecasting,

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周小蘭 王登炎 王建生 王小芳.湖北省集中暴雨特征分析[J].氣象科技,2006,34(4):405~409

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  • 收稿日期:2005-12-16
  • 定稿日期:2006-05-12
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