使用HEC-HMS模型和使用GIS远程传感对迪拜的洪水建模和分析
Ihsanullah R Khan1, Samy I Elmahdy2, Rabee Rustum1
1Institute for Infrastructure and Environment, School of Energy, Geosciences, Infrastructure, and Society, Heriot-Watt University, P.O. Box 38103, Knowledge Park, Dubai, UAE.
Scientific reports
|October 24, 2024
概括
发达城市面临危险的洪水. 使用遥感,地理信息系统和降水数据的综合方法有助于通过估计排水量和识别具有高不透表面的易洪水地区来确保基础设施的安全.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 城市规划 城市规划
背景情况:
- 城市洪水对发达城市的基础设施构成重大风险.
- 结合遥感,地理信息系统 (GIS) 和降水数据的综合方法对于基础设施保护至关重要.
- 了解城市排水和不透水面之间的关系是减轻洪水的关键.
研究的目的:
- 开发和验证一个综合模型,用于估计城市地区基于事件的流水.
- 调查不透水表面与洪水发生概率之间的相关性.
- 评估一种结合HEC-GeoRAS和卫星图像用于城市洪水建模的新方法的效率.
主要方法:
- 利用水文工程中心的河流分析系统 (HEC-GeoRAS) 与卫星图像集成.
- 雇佣的水文工程中心-水文建模系统 (HEC-HMS) 包含降水量,斜率,土壤类型和土地使用/土地覆盖数据.
- 校准和验证模型使用历史的流水事件,比较观察和模拟的流量和峰值排放.
主要成果:
- 确定Deira,Nief和Jumeirah分盆地拥有最大的不透水面积,这表明洪水发生的概率更高.
- 综合模型在估计基于事件的流量时表现出了效率.
- 该模型的预测与之前的研究得到了验证,显示出很好的一致性.
结论:
- 开发的综合模型对于评估城市洪水风险是有效的,特别是在具有显著不透水表面的地区.
- 该方法为城市基础设施保护和洪水管理策略提供了有价值的工具.
- 这种方法可以在面临洪水危险的类似城市环境中复制.
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