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黄河源区汛期降水径流序列多尺度小波分析
 轩党委1,张献志1,刘龙庆1,严昌盛1,白钰2,虞航1,郭强1,刘玉环1
(1.黄河水利委员会 水文局,河南 郑州 450004;2.黄河上游水电开发有限责任公司,青海 西宁 810000)
MultiScale Wavelet Analysis of Precipitation and Runoff Series in Flood Season in the Source Region of the Yellow River
 XUAN Dangwei1, ZHANG Xianzhi1, LIU Longqing1, YAN Changsheng1, BAI Yu2, YU Hang1, GUO Qiang1, LIU Yuhuan1
(1.Hydrological Bureau, YRCC, Zhengzhou 450004, China; 2.Huanghe Hydropower Development Co., Ltd., Xining 810000, China)

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人民黄河
  2024,Vol. 46(4): 32
  水文泥沙
黄河源区汛期降水径流序列多尺度小波分析
 轩党委1,张献志1,刘龙庆1,严昌盛1,白钰2,虞航1,郭强1,刘玉环1
(1.黄河水利委员会 水文局,河南 郑州 450004;2.黄河上游水电开发有限责任公司,青海 西宁 810000))
doi:
MultiScale Wavelet Analysis of Precipitation and Runoff Series in Flood Season in the Source Region of the Yellow River
 XUAN Dangwei1, ZHANG Xianzhi1, LIU Longqing1, YAN Changsheng1, BAI Yu2, YU Hang1, GUO Qiang1, LIU Yuhuan1
(1.Hydrological Bureau, YRCC, Zhengzhou 450004, China; 2.Huanghe Hydropower Development Co., Ltd., Xining 810000, China)
全文: PDF ()
摘要: 基于黄河源区15个地面站点日降水数据、唐乃亥水文站逐日径流数据以及小波分析方法,分析了黄河源区1961—2020年汛期降水和径流的周期规律、变化趋势及相关关系。结果表明,1)黄河源区近60 a汛期降水、径流均存在多时间尺度的变化特征,且不同时间尺度汛期降水、径流丰枯变化趋势均不同;2)汛期降水、径流序列均具有63 a左右、35 a左右特征时间尺度的主周期,两个时间尺度下的平均周期分别为41、25 a左右,汛期降水、汛期径流具有一定的正相关性;3)在63 a特征时间尺度可预测2020年之后未来5~10 a内黄河源区汛期降水、径流整体均呈减小趋势。
关键词:
Abstract: Based on the daily precipitation data of 15 ground stations in the source regions of the Yellow River, the daily runoff data of Tangnaihai Hydrological Station and the wavelet analysis method, this paper analyzed the periodic law, change trend and correlation of precipitation and runoff in the flood season of the source regions of the Yellow River from 1961 to 2020. The results show that a) the precipitation and runoff in the flood season of the source regions of the Yellow River in the past 60 years have the characteristics of multitime scales, and the variation trends of precipitation and runoff in flood season are different at different time scales. b) The precipitation and runoff series in flood season have the main periods of about 63 years and about 35 years, and the average periods of the three time scales are about 41 years and 25 years, respectively. The precipitation and runoff in flood season have a certain positive correlation. c) Under the 63year characteristic time scale, it can be predicted that the precipitation and runoff in the flood season of the source regions of the Yellow River will decrease in the next 5-10 years after 2020.
Key words: precipitation in flood season; runoff in flood season; wavelet analysis; source regions of the Yellow River
收稿日期:
基金资助: 国家自然科学基金黄河水科学研究联合基金项目(U2243229);黄河上游水电开发有限责任公司科技项目(KY-C-2021-SD07);国家自然科学基金面上项目(42371021)
作者简介: 轩党委(1995—),男,河南鹿邑人,工程师,硕士,主要从事水文水资源情报预报工作