人民黄河2024，Vol.46Issue(4)：32-36,42,6.DOI:10.3969/j.issn.1000-1379.2024.04.005
黄河源区汛期降水径流序列多尺度小波分析
Multi-Scale Wavelet Analysis of Precipitation and Runoff Series in Flood Season in the Source Region of the Yellow River
摘要
Abstract
Based on the daily precipitation data of 15 ground stations in the source regions of the Yellow River,the daily runoff data of Tang-naihai Hydrological Station and the wavelet analysis method,this paper analyzed the periodic law,change trend and correlation of precipitati-on 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.关键词
汛期降水/汛期径流/小波分析/黄河源区Key words
precipitation in flood season/runoff in flood season/wavelet analysis/source regions of the Yellow River分类
建筑与水利引用本文复制引用
轩党委,张献志,刘龙庆,严昌盛,白钰,虞航,郭强,刘玉环..黄河源区汛期降水径流序列多尺度小波分析[J].人民黄河,2024,46(4):32-36,42,6.基金项目
国家自然科学基金黄河水科学研究联合基金项目(U2243229) （U2243229）
黄河上游水电开发有限责任公司科技项目(KY-C-2021-SD07) （KY-C-2021-SD07）
国家自然科学基金面上项目(42371021) （42371021）
