| 8807号台风局地特大暴雨过程中尺度分析 |
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| 引用本文： | 徐文金.8807号台风局地特大暴雨过程中尺度分析[J].南京气象学院学报,1995,18(2):242-247. |
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| 作者姓名： | 徐文金 |
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| 作者单位： | 南京气象学院气象学系 |
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| 摘 要： | 分析了８８０７号台风所引发的局地特大暴雨成因：（１）台风提供了足够的水汽；（２）台风螺旋状云雨区和太阳辐射不均匀，形成了低层中尺度锋区，为暴雨发生提供极不稳定能量和触发条件；（３）局地地形和摩擦因子使湖北省宜昌地区成为这次对流云发展较有利的地点；（４）高空的中尺度降压系统和涡度因子加强了对流云团的发展。
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| 关 键 词： | 台风 暴雨 中尺度分析 |
MESOSCALE ANALYSIS OF EXCEPTIONAL RAINSTORM EVENT AT YICHANG RESULTING FROM TYPHOON NO.8807 |
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| Xu Wenjin.MESOSCALE ANALYSIS OF EXCEPTIONAL RAINSTORM EVENT AT YICHANG RESULTING FROM TYPHOON NO.8807[J].Journal of Nanjing Institute of Meteorology,1995,18(2):242-247. |
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| Authors: | Xu Wenjin |
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| Abstract: | The present paper is devoted to the causes of local severe rainstorm produced byTyphoon No. 8807.They are 1)abundant water carried by the storm;2)highly unstableenergy for and triggering to the rainfall offered by the low-level meso frontal zone in relation tothe spiral-form cloud/rainfall sector of the typhoon and inhomogeneous solar radiation;3)localtopography and frictional factors responsible for the fact that Yichang is a preferred seat forconvective cloud development;4)upper-level meso pressure fall system and vorticity factorenhancing the growth of the cloud. |
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| Keywords: | typhoon rainstorm mesoscale analysis |
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