郑州市雨岛效应多方法集成评估及量化研究  

Multi-method integrated evaluation and quantitative study of rain island effect in Zhengzhou City

作　　者：胡彩虹[1] 刘成帅 李想[1] 孙悦[1] 邬强 余其鹰 HU Caihong;LIU Chengshai;LI Xiang;SUN Yue;WU Qiang;YU Qiying(Yellow River Laboratory,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学黄河实验室,河南郑州450001

出　　处：《水资源保护》2023年第2期152-159,共8页Water Resources Protection

基　　金：国家自然科学基金(51739009,51979250);河南省科技攻关项目(222102320455)。

摘　　要：为研究城市化发展带来的雨岛效应问题,选用郑州市1978—2018年社会经济资料和1960—2020年逐日降雨资料,在利用六阶段论和“S”形曲线法分析郑州城市化发展水平的基础上,多方法并举构建雨岛效应评估方法体系;基于年降水量、年汛期降水量对郑州市雨岛效应进行趋势和周期变化分析,并引入标准化距离法量化评估雨岛效应。结果表明:郑州市中心城区雨岛效应在1997年和2004年有明显突变增强趋势;年降水量、年汛期降水量雨岛效应增强趋势分别持续4 a和10 a,且分别具有8~10 a、15~20 a的第一主周期和17~20 a、6~10 a的第二主周期;标准化距离法计算的年降水量、汛期降水量增雨系数标准化显化值分别为0.261和0.643,说明郑州市雨岛效应集中于汛期。In order to study rain island effect caused by urbanization development,the six-stage theory and the S-shaped curve method were used to analyze the level of urbanization development in Zhengzhou by means of the socio-economic data of Zhengzhou from 1978 to 2018 and daily rainfall data from 1960 to 2020,and evaluation method system of rain island effect was constructed by integrating multiple methods.Based on annual precipitation and annual flood season precipitation,the trend and periodic change analysis of rain island effect in Zhengzhou was carried out,and the normalized distance method was introduced to quantitatively evaluate the rain island effect.The results showed that the rain island effect in central urban area of Zhengzhou had an obvious trend of abrupt increase in 1997 and 2004;the increasing trend of rain island effect of annual precipitation and annual flood season precipitation lasted for 4 years and 10 years,respectively,with the first main period of 8 to 10 years and 15 to 20 years and the second main period of 17 to 20 years and 6 to 10 years,respectively;the explicit values of annual precipitation enhancement coefficient and annual flood season precipitation enhancement coefficient calculated by the standardized distance method were 0.261 and 0.643,respectively,indicating that the rain island effect in Zhengzhou was concentrated in flood season.

关 键 词：雨岛效应 增雨系数 城市化 评估方法体系 标准化距离法 郑州市 

分 类 号：TV125[水利工程—水文学及水资源]