薛丰昌,黄敏敏,唐步兴.城市暴雨积涝水量动态分配有源积水扩散算法研究.气象科学,2018,(5):674-680 XUE Fengchang,HUANG Minmin,TANG Buxing.Rearch on dynamic diffusion algorithm with source term of water volume in waterlogging.Journal of the Meteorological Sciences,2018,(5):674-680
城市暴雨积涝水量动态分配有源积水扩散算法研究
Rearch on dynamic diffusion algorithm with source term of water volume in waterlogging
投稿时间:2017-05-12  修订日期:2017-08-10
DOI:10.3969/2017jms.0067
中文关键词:  城市内涝  积涝模拟  算法
英文关键词:Urban waterlogging  Dynamic diffusion  Algorithrn
基金项目:江苏省自然科学基金(BK20151458);江苏省博士后科研基金(编号1101024B);江苏省研究生科研创新计划项目(KYCX17-0891;KYCX17-0890)
作者单位E-mail
薛丰昌 南京信息工程大学 遥感与测绘工程学院, 南京 210044
南京信息工程大学 气象灾害省部共建教育部重点实验室, 南京 210044 
 
黄敏敏 南京信息工程大学 遥感与测绘工程学院, 南京 210044
南京信息工程大学 气象灾害省部共建教育部重点实验室, 南京 210044 
elfishhmm@foxmail.com 
唐步兴 南京信息工程大学 遥感与测绘工程学院, 南京 210044
南京信息工程大学 气象灾害省部共建教育部重点实验室, 南京 210044 
 
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中文摘要:
      城市暴雨淹没分析对城市暴雨积涝数值模拟研究具有重要意义。传统暴雨淹没分析算法中,给定水位下的积水淹没分析算法需要已知积涝水位,但是在实际降雨中积涝水位获取存在一定难度;已知洪水体积的积涝扩散算法虽然算法简单、计算速度快,但是未突破汇水区边界限制。针对传统淹没分析算法存在的不足,从有源扩散的角度出发,提出了一种水量动态分配的有源积水扩散算法,提高了暴雨积水模拟的准确性。以漳州市龙文区为例,选取了2016年6月15日的降雨进行验证,结果与实测结果基本一致。
英文摘要:
      The urban storm flood analysis is of great significance to the study of numerical simulation of urban storm waterlogging. In the traditional urban storm flood analysis algorithm, water level of waterlogging is essential for urban storm flood analysis with given water level,but it is difficult to obtain it in real situation; The urban storm flood analysis algorithm with given water volume is simple and has a fast calculation speed,but it also has the disadvantage of the limit of catchment area boundary. To overcome these deficiency, a dynamic diffusion algorithm with source term of water volume in waterlogging is proposed. The algorithm has a high accuracy and avoid the subjectivity of human choice of multi direction influence factors. Taking Longwen District of Zhangzhou as an example, the rainfall in June 15, 2016 was selected to validate the algorithm. The results are basically consistent with the measured results. So a conclusion can be reached that the algorithm is effective and accurate.
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