[1]张建,和鹏飞,骆进军,等.基于伽马函数与核熵成分分析的短历时强对流型暴雨设计方法[J].江苏水利,2022,(10):10-14,17.
 ZHANG Jian,HE Pengfei,LUO Jinjun,et al.Design method of short-duration strong convective rainstorms based on gamma function and KECA[J].JIANGSU WATER RESOURCES,2022,(10):10-14,17.
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基于伽马函数与核熵成分分析的短历时强对流型暴雨设计方法()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2022年10期
页码:
10-14,17
栏目:
水文水资源
出版日期:
2022-11-17

文章信息/Info

Title:
Design method of short-duration strong convective rainstorms based on gamma function and KECA
文章编号:
1007-7839(2022)10-0010-0005
作者:
张建1和鹏飞2骆进军3周正模4
(1.镇江市京口区水利局,江苏 镇江 212000;2.黄河水利科学研究院,河南 郑州 450003;3.南京市高淳区河道管理所,江苏 南京 211300;4.河海大学 水文水资源学院,江苏 南京 210098)
Author(s):
ZHANG Jian1 HE Pengfei2 LUO Jinjun3 ZHOU Zhengmo4
(1.Water Resources Bureau of Jingkou District in Zhenjiang, Zhenjiang 212000, China;2.Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China;3.River Course Administration Bureau of Gaochun District in Nanjing, Nanjing 211300, China;4.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China)
关键词:
强对流型暴雨双参数伽马函数核熵成分分析镇江市
Keywords:
strong convective rainstorms two-parameter gamma function KECA Zhenjiang City
分类号:
TV125
文献标志码:
B
摘要:
利用双参数伽马函数与核熵成分分析,建立短历时强对流型暴雨设计方法,并以镇江市为例,在识别与分析研究区1981—2016年汛期短历时强对流型暴雨的基础上,推求30年一遇的短历时强对流型设计暴雨过程。结果表明:根据总雨量与最大10 min雨强比值的不同,镇江市短历时强对流型实测暴雨事件可分为3种类型;短历时强对流型与芝加哥雨型推求得到的设计暴雨过程具有较高的一致性,验证了短历时强对流型暴雨设计方法的可行性;强对流型设计暴雨的雨强和雨量均比芝加哥雨型小,表明在暴雨以对流型为主的地区,选用此方法设计暴雨标准确定排水系统的工程规模更为科学。研究成果可为完善镇江市防涝防洪系统提供参考。
Abstract:
This paper proposed a design method of short-duration strong convective rainstorms by using a two-parameter gamma function and kernel entropy component analysis?(KECA). Zhenjiang City was selected as the study area, the short-duration strong convective rainstorm events in the flood seasons from 1981 to 2016 were identified and analyzed. On this basis, the processes of designed short-duration strong convective rainstorms with a return period of 30 years were deduced. The results show that the observed short-duration strong convective rainstorm events in Zhenjiang City can be divided into three types according to the difference of the ratio of total rainfall to maximum 10 min rainfall intensity. The processes of designed short-duration rainstorms deduced from the strong convective rainstorms pattern and the Chicago rainstorm pattern have high consistency, which verifies the feasibility of the design method of short-duration strong convective rainstorms in this paper. In addition, the amount and intensity of the rainstorms designed by the strong convective rainstorm pattern are both lower than those designed by Chicago rainstorm pattern, which indicates that is more scientific to use the method proposed in this paper to design rainstorms and determine the scale of drainage systems in the areas where rainstorms are mainly convective. The research findings can provide reference for improving the flood control system in Zhenjiang City.

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备注/Memo

备注/Memo:
收稿日期:2022-06-30
基金项目:国家自然科学基金项目(51879069);江苏省水利科技项目(2018002)
作者简介:张建(1968—),男,工程师,主要从事水利工程建设与管理工作。E-mail:1146884529@qq.com
更新日期/Last Update: 2022-10-25