洪泽湖汛期划分综合分析  

A Comprehensive Analysis of the Flood Season Division of Hongze Lake

作　　者：李文杰 冯志刚 李晓丽 戴丽纳 苏翠 LI Wen-jie;FENG Zhi-gang;LI Xiao-li;DAI Li-na;SU Cui(Hydrologic Bureau,Huaihe River Commission(Information Center),Bengbu 233000,Anhui Province,China;Branch Company in Yantai of Shandong Shuizhiyuan Water Resources Planning and Design Co.Ltd.,Yantai 264000,Shandong Province,China)

机构地区：[1]淮河水利委员会水文局(信息中心),安徽蚌埠233000 [2]山东水之源水利规划设计有限公司烟台分公司,山东烟台264000

出　　处：《中国农村水利水电》2023年第6期74-78,共5页China Rural Water and Hydropower

摘　　要：以位于淮河水系下游的洪泽湖作为研究对象,进行汛期分期划分,利用淮河水系1990年(共30年)以来具有连续记录、分布均匀的1000多站雨量站日降雨资料,采用降雨时-面-深分析计算方法,开展淮河水系汛期划分,根据水利部汛期划分标准,选择计算时段为3 d,累积降雨量标准为30/50 mm,以淮河水系3 d累积降雨量覆盖面积动态变化量作为指标分析淮河水系入汛/出汛日期以及进行主汛期划分。洪泽湖作为位于淮河水系下游的大型平原湖泊,承接淮河水系上中游来水,将洪泽湖入湖7站1990-2019年(共30年)的径流资料进行合成,利用日合成流量以分形分析法和变点分析法进行计算,对洪泽湖汛期进行综合分析并划分主汛期。淮河水系降雨时-面-深分析计算得到淮河水系汛期为5月23日-9月17日,其中主汛期为6月26日-8月28日;分形分析法计算得到洪泽湖汛期为5月25日-9月30日,其中主汛期为6月20日-8月20日;变点分析法计算得到洪泽湖汛期为5月1日-9月28日,主汛期为6月19日-8月28日。综合分析计算结果,为洪泽湖汛期分期划分及汛期控制水位设定、调度提供依据。This paper takes Hongze Lake in the lower reaches of Huaihe River system as the research object and divides the flood season into different stages,the method of rainfall time-area-depth analysis and calculation is adopted and it is based on the daily rainfall data of more than 1000 rainfall stations with continuous records and uniform distribution since 1990,according to the flood season division standard of the Ministry of Water Resources,the calculation period is selected as 3 d,and the cumulative rainfall standard is 30/50 mm,this paper adopts the index of the dynamic change of 3 d cumulative rainfall coverage area of the Huai River and analyzes the date of the flood season and the main flood season.As a large plain lake located in the lower reaches of the Huai River system,Hongze Lake receives water from the upper and middle reaches of the Huai River.In this paper,the runoff data of seven stations entering Hongze Lake from 1990 to 2019(a total of 30 years)are synthesized,and the daily synthetic flow is calculated by fractal analysis and change-point analysis,flood season and main flood season of Hongze Lake are obtained by comprehensive analysis.The flood season of Huaihe River system is from May 23 to September 17 according to time-area-depth analysis of rainfall,among which the main flood season is from June 26 to August 28.The flood season of Hongze Lake is from May 25 to September 30 according to Fractal analysis method,among which the main flood season is from June 20 to August 20;the flood season of Hongze Lake is from May 1 to September 28 according to change point analysis,among which the main flood season is from June 19 to August 28.The results are comprehensively analyzed and can be used to provide a basis for the classification of Hongze Lake in flood seasons and the setting and dispatching of control water level in flood seasons.

关 键 词：淮河水系 洪泽湖 汛期分期 分形分析 

分 类 号：TV122.1[水利工程—水文学及水资源]