| 甬江流域台汛期降雨时空演变分析 |
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| 引用本文： | 张芳,张卫国,王新龙,赵思远.甬江流域台汛期降雨时空演变分析[J].宁波大学学报(理工版),2018,0(3):94-97. |
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| 作者姓名： | 张芳 张卫国 王新龙 赵思远 |
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| 作者单位： | （宁波市水利水电规划设计研究院, 浙江 宁波 315192） |
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| 摘 要： | 为识别甬江流域台汛期降雨量变化规律, 指导流域防洪治涝, 以流域内及其周边47个国家雨量站逐日降雨资料为基础, 采用Mann-Kendall法、Pettitt法和Morlet小波分析法, 分析了甬江流域台汛期降雨量的趋势、突变和周期. 结果表明: 台汛期降雨量呈不明显增加趋势; 在1980年发生突变但未通过显著性检验; 降雨量变化存在22a主周期, 未来甬江流域台汛期降雨可能处于偏丰期.
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| 关 键 词： | 甬江流域 台汛期 降雨 趋势 突变 周期 |
Spatial and temporal evolution of rainfall in typhoon season in Yong River Basin |
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| ZHANG Fang,ZHANG Wei-guo,WANG Xin-long,ZHAO Si-yuan.Spatial and temporal evolution of rainfall in typhoon season in Yong River Basin[J].Journal of Ningbo University(Natural Science and Engineering Edition),2018,0(3):94-97. |
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| Authors: | ZHANG Fang ZHANG Wei-guo WANG Xin-long ZHAO Si-yuan |
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| Affiliation: | ( Ningbo Hydraulic Waterpower Planning and Designing Research Institution, Ningbo 315192, China ) |
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| Abstract: | In order to identify the variation regularities of rainfall in typhoon season in Yong River Basin for guiding the watershed flood prevention and control, based on daily rainfall data collected from 47 rainfall stations in the basin and its surrounding areas, the trend, sudden variation and period of rainfall in typhoon season in Yong River Basin are analyzed using Mann-Kendall method, Pettitt method and Morlet wavelet analysis method. The results show that the rainfall in typhoon season does not significantly increase over the past decades. Also found is that, although the sudden variation is recorded in 1980, no significant change has been witnessed as a consequence. Twenty-two-year span may be considered the major period of the rainfall. It is predicted that the precipitation in the Yong River Basin could be increasing in the future. |
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| Keywords: | Yong River Basin typhoon season precipitation trend mutation period |
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