| 滇西短时强降水的时空分布特征 |
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| 引用本文： | 许宏波,谢屹然,谢银剑.滇西短时强降水的时空分布特征[J].安徽农业科学,2016,44(16):190-195. |
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| 作者姓名： | 许宏波 谢屹然 谢银剑 |
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| 作者单位： | 云南省保山市气象局,云南保山,678000;云南省气象台,云南昆明,650034;剑川县职业高等中学,云南剑川,671300 |
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| 基金项目： | 2014中国气象局预报员专项项目(CMAYBY2014-065)，国家自然科学基金项目(41305002)。 |
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| 摘 要： | 利用2010~2013年滇西12个自动气象站逐时降水资料和高空观测资料,研究了滇西短时强降水的时空分布特征,并分析典型短时强降水过程的环境背景场特征。结果表明,滇西短时强降水的频次的空间变化总体趋势呈南北向分布,大值中心在龙陵站;滇西短时强降水频次有显著的年变化;短时强降水集中发生在5~9月;日变化呈多峰型,最强峰值出现在04:00~05:00;滇西短时强降水存在5种环流概念模型。
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| 关 键 词： | 短时强降水 时空分布 环境背景场 滇西 |
Spatial and Temporal Distribution Characteristics of Short-time Heavy Rainfall in West Yunnan Province |
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| XU Hong-bo,XIE Yi-ran,Xie Yin-jian.Spatial and Temporal Distribution Characteristics of Short-time Heavy Rainfall in West Yunnan Province[J].Journal of Anhui Agricultural Sciences,2016,44(16):190-195. |
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| Authors: | XU Hong-bo XIE Yi-ran Xie Yin-jian |
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| Abstract: | Hourly precipitation data at 12 stations and radiosonde data in west Yunnan province from 2010 to 2013 were used to statistically com-pute the spatial and temporal distributions of short time heavy rainfall ( hereafter STHR) . Then, the environmental background characteristics of typical STRH were analyzed. The results showed that the general trend of spatial variation of STRH frequency in west Yunnan province exhibited south-north distribution, the maximum was in Longling station. The frequency of STRH in west Yunnan Province showed significant yearly varia-tions. The STRH mainly occurred from May to September. The diurnal variation of STRH showed a maximum around 4:00-05:00. There were five kinds of circulation conceptual models during STHR. |
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| Keywords: | Short-time heavy rainfall Spatial and temporal distribution Environmental background field West Yunnan Province |
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