摘要
简要介绍了哈尔滨市城市内涝监测预警系统的主要组成部分、核心技术及理论基础、重要应用价值及意义,并通过在一次强降水实例中的检验,证明该系统具有较高的精确度。在系统核心环节——积水仿真模型的建立中,该项目突破了传统规则网格的划分法,而是根据城市地形地貌特点独创了无结构不规则网格技术。此外,仿真模型中对排水工程设施进行了数字概化,首次实现了地面积水与管道水体模拟之间的结合;初步解决了哈尔滨特有的陆地泵排水模拟问题;将监测雨量信息和数值天气预报信息带入仿真模型,实现了气象学与水文学的结合。通过运行该系统,可以提高对积水预报的准确度。
The main components urban waterlogging monitoring and forecasting system of Harbin city, including the key technology, theoretical basis, practical value and its importance are described briefly. The test of this system in a real case of a heavy rainfall proves the high accuracy of the system. In establishing the simulation model of urban waterlogging, the core component of the system, a created structureless irregular grid technology is adopted in accordance with the geographical feature of the city, in stead of the traditional regular grid method. In the simulation model, the sewerage works facilities are digitalized. It is the first to combine the surface water with the simulation of water in pipelines. The problem of simulating bumping drainage is preliminarily solved in Harbin. Using rainfall information and numerical weather forecast information in the simulation model actualizes the combination of meteorology with hydrology. Application of system can improve the accuracy of waterlogging prediction.
出处
《灾害学》
CSCD
2009年第1期54-57,共4页
Journal of Catastrophology
基金
哈尔滨市科技攻关项目(2006AA9cs180)
关键词
暴雨内涝
仿真计算
模拟
概化
专题数据库
哈尔滨
urban waterlogging
simulation computation
simulation
digitization
special database
Harbin
