主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2022, Vol. 38 ›› Issue (6): 89-97.doi: 10.3969/j.issn.1673-503X.2022.06.011

• 论文 • 上一篇    下一篇

基于设计暴雨雨型的天津城市内涝模拟研究

陈靖1,2(),李明财1,2,曹经福1,2,熊明明3,李培彦1,2,王卉4,赵树明4   

  1. 1. 天津市海洋气象重点实验室, 天津 300074
    2. 天津市气象科学研究所, 天津 300074
    3. 天津市气候中心, 天津 300074
    4. 天津城市规划设计研究总院有限公司, 天津 300201
  • 收稿日期:2021-02-07 出版日期:2022-12-28 发布日期:2022-12-27
  • 作者简介:陈靖, 男, 1984年生, 高级工程师, 主要从事城市内涝、数值预报研究工作, E-mail: cjj1_1@163.com
  • 基金资助:
    天津市气象局科研项目(202001ybxm01);国家国防科技工业局高分观测专项(66-Y50G03-9001-22/23)

Urban waterlogging simulation in Tianjin based on designed rainstorm patterns

Jing CHEN1,2(),Ming-cai LI1,2,Jing-fu CAO1,2,Ming-ming XIONG3,Pei-yan LI1,2,Hui WANG4,Shu-ming ZHAO4   

  1. 1. Tianjin Key Laboratory for Oceanic Meteorology, Tianjin 300074, China
    2. Tianjin Institute of Meteorological Science, Tianjin 300074, China
    3. Tianjin Climate Centre, Tianjin 300074, China
    4. Tianjin Urban Planning and Design Institute, Tianjin 300201, China
  • Received:2021-02-07 Online:2022-12-28 Published:2022-12-27

摘要:

为分析不同设计暴雨雨型对天津中心城区内涝的影响, 采用天津城市暴雨内涝模型水动力数学模型, 以天津中心城区为研究区域进行城市内涝数值模拟。通过对2018—2019年天津市3次不同降水过程进行模型模拟效果检验表明, 该模型具有一定的模拟精度。在此基础上, 对不同重现期、不同历时、不同概率的时段雨型为降雨边界的内涝过程进行模拟, 对比分析内涝积水总量、积水面积等模拟结果。结果表明: 3种代表性设计暴雨雨型, 短历时(6h)且重现期较短(< 10a)的暴雨, 强降水持续时间长, 且峰现时间较早的雨型, 积水总量及面积最大, 而重现期较长的暴雨(≥10a), 强降水时段集中, 峰值出现最早的雨型, 积水总量及面积最大。12h和24h等长历时的降水, 则规律相反。

关键词: 内涝模型, 设计暴雨, 数值模拟, 风险评估

Abstract:

To analyze the impact of different design rainstorm patterns on the waterlogging in the central urban area of Tianjin, the numerical simulation of urban waterlogging in the central urban area of Tianjin was conducted using the Tianjin urban rainstorm waterlogging model (TJUWM), a hydrodynamic mathematical model.The validation of simulation results during three different precipitation processes in 2018 and 2019 in Tianjin shows that this model has a certain simulation accuracy.Thereafter, the waterlogging processes with different return periods, duration, and probabilities are simulated, and the simulated total water amount and area of waterlogging are compared and analyzed.Among three representative-designed rainstorm patterns, the rainstorms with short duration (6 h) and short return period (< 10 years) have a long duration of heavy precipitation, earlier peak time, and the largest total water amount and waterlogged area.The rainstorms with long return period (≥10 years) have concentrated heavy precipitation, the earliest peak time, and the largest total water amount and area.For precipitation with the equal duration of 12 h and 24 h, the simulated statistical results are the opposite.

Key words: Waterlogging model, Designed rainstorm, Numerical simulation, Risk assessment

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