| 武汉近50年来降雨数据的统计分析 |
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| 引用本文： | 王艳,吴军玲,王恒亮,赵东方.武汉近50年来降雨数据的统计分析[J].湖北工业大学学报,2006,21(6):98-100. |
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| 作者姓名： | 王艳 吴军玲 王恒亮 赵东方 |
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| 作者单位： | 华中师范大学数学与统计学院,湖北,武汉,430079 |
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| 摘 要： | 通过收集武汉地区1951-2000年平均降雨量数据,采用SPSS软件对月降雨量序列进行分析,得到武汉地区发生洪涝的极值点,其中6月是448.1,7月是380.6,8月是313.5;分析年降雨量的时间序列图得出年降雨量不存在周期;计算各降雨量序列的相关性系数,可知各月之间基本上没有影响.计算年降雨量异常指标,并得到结论:当雨量异常指标RAI>3时,可以认为此年是洪涝年.
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| 关 键 词： | 降雨量 百分位数 相关系数 异常指标 |
| 文章编号： | 1003-4684（2006）12-0098-03 |
| 收稿时间： | 2006-10-30 |
| 修稿时间： | 2006-10-30 |
The Statistical Analysis of Rainfall in Wuhan in the Past 50 years |
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| WANG Yan,WU Jun-ling,WANG Heng-liang,ZHAO Dong-fang.The Statistical Analysis of Rainfall in Wuhan in the Past 50 years[J].Journal of Hubei University of Technology,2006,21(6):98-100. |
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| Authors: | WANG Yan WU Jun-ling WANG Heng-liang ZHAO Dong-fang |
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| Affiliation: | Dep. of Mathematics and Statistics,Central China Normal Univ. , Wuhan 430079 |
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| Abstract: | The average rainfall data in Wuhan through the year of 1951to 2000 have been collected.By using SPSS software to analyze the data,a series of conclusions has been drawn:1) Sequence analysis of the rainfall shows the extreme floods ever in Wuhan,where June is 448.1,July is 380.6 and August is 313.5.2) Time series analysis of rainfall indicates there is no rainfall cycle.3) The calculation of the coefficient of correlation between rainfall sequences reveals there is no effect between each other.4) From the calculation of year rainfall anomaly index,a conclusion is as follows: When RAI>3,that year is the flood year. |
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| Keywords: | rainfall percentile the coefficient of correlation rainfall anomaly index |
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