信阳师范学院学报（自然科学版）2024，Vol.37Issue(4)：524-531,8.DOI:10.3969/j.issn.1003-0972.2024.04.015
太行山地区1973-2022年暴雨时空演变特征分析
Analysis of the Spatiotemporal Variations in Heavy Rainfall Events in the Taihang Moutainous Region from 1973 to 2022
摘要
Abstract
Based on the daily precipitation data from 13 meteorological stations in the Taihang moutainous region(TMR)spanning 50 a period,various methods such as the Mann-Kendall abrupt change test,the signal-to-noise ratio test,the Sen's slope estimator,the wavelet analysis and the empirical orthogonal function decomposition,were applied to examine the spatiotemporal patterns of heavy rainfall events in the TMR.The findings revealed:(1)Heavy rainfall in the TMR showed the substantial fluctuation.According to the fitted slope and Sen's slope estimation method,it was suggested that heavy rainfall in this region would experience an increasing trend in the future.(2)The Mann-Kendall abrupt change test and signal-to-noise ratio test indicated a notable transition towards higher levels of heavy rainfall in the TMR in 2006.(3)The Morlet wavelet analysis showed cyclic variations in heavy rainfall with period scales of 2～3 a in the study area.(4)The first two modes of the Empirical Orthogonal Function(EOF)analysis illustrated coherent spatial patterns throughout the entire region in heavy rainfall distribution,including a southwest-northeast reverse pattern.Both patterns were influenced by atmospheric circulation and topography in the TMR.关键词
太行山/暴雨/时空分布/正交函数(EOF)分析/小波分析Key words
Taihang mountains/rainstorm/space-time distribution/Empirical Orthogonal Function(EOF)analysis/wavelet analysis分类
天文与地球科学引用本文复制引用
唐倩玉,李远航,胡孟然,张基恒,李华勇,傅志远,黄上玉,李依霖..太行山地区1973-2022年暴雨时空演变特征分析[J].信阳师范学院学报（自然科学版）,2024,37(4):524-531,8.基金项目
国家自然科学基金项目(41807447) （41807447）
安阳国家气候观象台开放研究基金项目(AYNCOF202311) （AYNCOF202311）
河南省科技攻关项目(242102320016 （）
232102321109) （）
河南省高等学校重点科研项目(24A170003) （24A170003）
河南兴文化工程文化研究专项项目(2023XWH020) （2023XWH020）
