| 岩溶区流域月、季尺度降雨变化特征及其与台风相关性分析 |
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| 引用本文： | 阮俞理,莫崇勋,孙桂凯. 岩溶区流域月、季尺度降雨变化特征及其与台风相关性分析[J]. 水力发电, 2021, 0(1): 27-33 |
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| 作者姓名： | 阮俞理 莫崇勋 孙桂凯 |
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| 作者单位： | 广西大学土木建筑工程学院;工程防灾与结构安全教育部重点实验室;广西防灾减灾与工程安全重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(51969004);广西自然科学基金资助项目(2017GXNSFAA198361);广西研究生教育创新计划资助项目(YCBZ2019022)。 |
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| 摘 要： | 研究采用相对变化率、集中度和集中期分析降雨的年内分布规律,然后采用线性趋势和Mann-Kendall等研究降雨的年际变化规律,最后采用Pearson相关分析和灰色相关分析方法探讨降雨与台风的相关性特征.结果显示,各月降雨相对变化率达到30％以上,降雨趋于集中化,主要集中在7月份;月平均降雨量相对稳定,春、夏季降雨减少,...
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| 关 键 词： | 降水特征 台风 相关性分析 Mann-Kendall 灰色相关分析法 |
Characteristics of Monthly and Seasonal Rainfall Variation in Karst Basin and Its Correlation with Typhoons |
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| RUAN Yuli,MO Chongxun,SUN Guikai. Characteristics of Monthly and Seasonal Rainfall Variation in Karst Basin and Its Correlation with Typhoons[J]. Water Power, 2021, 0(1): 27-33 |
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| Authors: | RUAN Yuli MO Chongxun SUN Guikai |
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| Affiliation: | (College of Architecture and Civil Engineering,Guangxi University,Nanning 530004,Guangxi,China;Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education,Nanning 530004,Guangxi,China;Guangxi Key Laboratories of Disaster Prevention and Engineering Safety,Nanning 530004,Guangxi,China) |
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| Abstract: | The relative variability,concentration and concentration period are firstly used to analyze the distribution of rainfall within the year,then the linear trend and Mann-Kendall are used to study the inter-annual variation of rainfall,and finally the Pearson correlation analysis and gray correlation analysis method are used to discuss the correlation characteristics between rainfall and typhoons.The results show that,(a)the relative variability of monthly rainfall is relatively larger with a magnitude of more than 30%,and the rainfall tends to be concentrated and is mainly concentrated in July;(b)the monthly average rainfall is relatively stable,and the seasonal rainfall decreases in spring and summer,while increases in autumn and winter,and(c)the abrupt change occurred during 1980s-1990s.The typhoon-caused rain is the main factor affecting the summer and autumn rainfall while the number of typhoons has the least influence. |
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| Keywords: | precipitation characteristics typhoon correlation analysis Mann-Kendall grey correlation analysis |
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