海绵城市降雨典型年的模糊相似优选  

Fuzzy Similarity Optimization Method to Select Typical Rainfall Year for Sponge City

作　　者：袁昊 侯景伟[4,5] 刘学军 王兴[1,2,3] YUAN Hao;HOU Jingwei;LIU Xuejun;WANG Xing(Key Laboratory of Virtual Geographic Environment,Ministry of Education,Nanjing Normal University,Nanjing 210023,China;Jiangsu Center for Collaborative Innovation in Geographical Information Resources Development and Application,Nanjing 210023,China;Jiangsu Provincial State Key Laboratory Cultivation Base of Geographical Environment Evolution,Nanjing 210023,China;College of Resources and Environmental Science,Ningxia University,Yinchuan 750021,China;Ethnology and Cultural Tourism Industry Institute,Ningxia University,Yinchuan 750021,China)

机构地区：[1]南京师范大学虚拟地理环境教育部重点实验室,江苏南京210023 [2]江苏省地理信息资源开发与利用协同创新中心,江苏南京210023 [3]江苏省地理环境演化国家重点实验室培育建设点,江苏南京210023 [4]宁夏大学资源环境学院,宁夏银川750021 [5]宁夏大学民族文化旅游产业研究所,宁夏银川750021

出　　处：《人民黄河》2022年第11期26-30,共5页Yellow River

基　　金：国家自然科学基金资助项目(41661026);江苏高校优势学科建设工程资助项目(164320H116);江苏省研究生科研创新计划项目(KYCX20_1180)。

摘　　要：为避免主观因素对降雨典型年提取结果的影响,基于兰州市29 a的降雨数据,选取年降雨量、年降雨天数、汛期降雨量、枯期降雨量和年降雨日极差5个相似因子,利用欧氏距离模糊相似优先比法提取降雨典型年。以年径流总量控制率和累计降雨频率作为评价指标,结合相关性分析对提取结果进行评价。同时将以上提取结果与绝对距离模糊相似优先比法的计算结果进行比较,进而验证欧氏距离模糊相似优先比法的准确性和计算过程的简捷性。结果表明:1991年为兰州市降雨典型年,降雨典型年的年径流总量控制率和累计降雨频率与多年年径流总量控制率和累计降雨频率的相关系数分别为0.997和0.981,提取结果具有可靠性,既反映了兰州市的典型降雨特征,又能满足海绵城市建设的需要。与绝对距离模糊相似优先比法相比,欧氏距离模糊相似优先比法有效简化了计算过程。In order to avoid the influence of subjective factors on the results of extracting typical rainfall years,based on the rainfall data of Lanzhou City in 29 years,this paper selected 5 similar factors of annual rainfall,annual rainfall days,flood season rainfall,dry season rain⁃fall and extremely poor annual rainfall days,and used the euclidean distance fuzzy similarity priority ratio method to extract typical rainfall years.Taking the control rate of total annual runoff and cumulative rainfall frequency as the evaluation index and combining with correlation a⁃nalysis,it evaluated the extraction results.At the same time,the above extraction results were compared with the calculation results of abso⁃lute distance fuzzy similarity priority ratio method to verify the accuracy of euclidean distance fuzzy similarity priority ratio method and the simplicity of the calculation process.The results show that 1991 is a typical year of rainfall in Lanzhou City,the curve's correlation coeffi⁃cients between the total annual runoff control rate and cumulative rainfall frequency in typical rainfall year and the annual total runoff control rate and cumulative rainfall frequency for many years are 0.997 and 0.981 respectively.The extracted results are reliable,which not only re⁃flect the typical rainfall characteristics of Lanzhou,but also meet the needs of sponge city construction.Compared with the absolute distance fuzzy similarity priority ratio method,the euclidean distance fuzzy similarity priority ratio method simplifies the calculation process.

关 键 词：海绵城市 降雨典型年 模糊相似优先比 欧氏距离 年径流总量控制率 

分 类 号：TU984[建筑科学—城市规划与设计] TV231[水利工程]