| 三岔河上游近50年降水径流变化特征分析 |
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| 引用本文： | 张一鸣,田雨,雷晓辉,宋万祯,蒋云钟.三岔河上游近50年降水径流变化特征分析[J].水文,2016,36(5):79-84. |
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| 作者姓名： | 张一鸣 田雨 雷晓辉 宋万祯 蒋云钟 |
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| 作者单位： | 1.天津大学建筑工程学院2.中国水利水电科学研究院流域水循环模拟与调控国家重点实验室 |
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| 基金项目： | 贵州省重大科技项目“黔中岩溶山区水资源可持续利用关键技术研究”(黔科合重大专项专题[2012]6013-6)；中国水利水电科学研究院院专项“国家智能水网工程框架设计”资助项目(资集1222)；国家973计划课题“梯级水库群风险预警与应急处置机理”(2013CB036406)； |
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| 摘 要： | 为分析黔中水利枢纽工程的水源区——三岔河上游的水资源演变规律,利用常规线性回归和滑动平均法、Pettitt法以及Morlet小波分析等方法,对该流域近50年降水和径流水资源要素进行趋势性、突变性和周期性等多维特征分析。研究表明:降水和径流整体减少或增加趋势不明显,但其丰枯年份交替频繁,起伏波动较大;突变检验结果显示该区水文序列均在2003年存在突变年份,且均为不显著性突变年份;Morlet小波周期性分析可以看出研究区水文序列都存在一个14a左右的周期变化。上述分析成果一定程度上可为该区域水资源开发提供依据。
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| 关 键 词： | 滑动平均法 Pettitt法 Morlet小波分析 趋势分析 突变分析 周期分析 |
| 收稿时间： | 2015/7/17 0:00:00 |
Change Characteristics of Water Resources in Sanchahe Upstream over Past 50 Years |
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| ZHANG Yiming,TIAN Yu,LEI Xiaohui,SONG Wanzhen,JIANG Yunzhong.Change Characteristics of Water Resources in Sanchahe Upstream over Past 50 Years[J].Hydrology,2016,36(5):79-84. |
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| Authors: | ZHANG Yiming TIAN Yu LEI Xiaohui SONG Wanzhen JIANG Yunzhong |
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| Abstract: | In order to analyze the evolution of water resources in the Sanchahe upstream, the water source area of the Qianzhong Hydraulic Project, the conventional linear regression, moving average method, Pettitt method and Morlet wavelet analysis method were used to find out the trend, mutability and periodic multidimensional characteristics of the precipitation and runoff from 1963 to 2012. The results show that the overall changing trends of precipitation and runoff are not obvious, but the wet and dry years alternate frequently. Mutation test results show that all of the hydrological sequences have a mutation in the year 2003, but not significant. According to the Morlet wavelet analysis, all of the hydrological sequences can be found a change periodic about 14 years. |
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| Keywords: | moving average Pettitt Morlet wavelet trend analysis mutation analysis period analysis |
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