| 温州"9.4"台风倒槽特大暴雨分析 |
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| 引用本文： | 郑峰,张天河,吴贤笃,余贞寿. 温州"9.4"台风倒槽特大暴雨分析[J]. 科技导报(北京), 2007, 25(11): 34-38 |
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| 作者姓名： | 郑峰 张天河 吴贤笃 余贞寿 |
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| 作者单位： | 温州市气象局,浙江,温州,325027;温州市气象局,浙江,温州,325027;温州市气象局,浙江,温州,325027;温州市气象局,浙江,温州,325027 |
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| 基金项目： | 国家自然科学基金项目(404050009,40205008)，国家重点基础科研发展规划项目(2004CB418301) |
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| 摘 要： | 运用T106数值预报产品、MM5模式结合Q矢量计算NCEP资料、天气实况及卫星云图等非常规资料,对1999年9月4日凌晨在远离9909号热带风暴中心的浙江省温州市引发的特大暴雨进行了探讨。发现秋季在厦门以南至广东东部登陆的台风,在浙中南沿海形成台风倒槽,该倒槽内的暖湿切变线的中尺度对流复合体(Mesoscale Convective Complex,MCC)是引起特大暴雨的重要条件。从计算得出的Q矢量散度分布看,本次特大暴雨降水发生时间和量级与该时段内温州经历的强Q矢量散度梯度发展有密切联系。同时,温州呈东北-西南走向的海岸线及境内雁荡山脉有利地形的抬升作用,对本次热带风暴倒槽降水中局地特大暴雨的形成有重要贡献。
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| 关 键 词： | 远距离台风暴雨 台风倒槽 中尺度对流复合体(MCC) Q矢量散度梯度 |
| 文章编号： | 1000-7857（2007）11-0034-05 |
| 修稿时间： | 2007-04-06 |
Analysis of Wenzhou Abnormal Heavy Rain Associated with 9909 Tropic Cyclone |
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| ZHENG Feng,ZHANG Tianhe,WU Xiandu,YU Zhenshou. Analysis of Wenzhou Abnormal Heavy Rain Associated with 9909 Tropic Cyclone[J]. Science & Technology Review, 2007, 25(11): 34-38 |
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| Authors: | ZHENG Feng ZHANG Tianhe WU Xiandu YU Zhenshou |
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| Affiliation: | Meteorological Observatory of Wenzhou, Wenzhou 325027, Zhejiang Province, China |
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| Abstract: | By use of T106 numerical products, satellite data and observations, this paper analyzes Wenzhou abnormal heavy rain associated with 9909 tropic cyclone. The results show that the autumn tropic cyclone landing at the east of Guandong province is often accompanied with an inverted trough extending to the middle-south Zhejiang coast. At the special place, one may see Mesoscale Convective Complex (MCC), which is responsible for the abnormal heavy rain. |
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| Keywords: | abnormal heavy rain inverted trough Mesoscale Convective Complex (MCC) front of Q vector divergence |
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