使用地理信息系统进行二维 (2D) 洪水分析和雨水排水系统的校准
1Civil Engineering Department, Atatürk University, Erzurum, Türkiye
概括
马拉蒂亚的城市雨水排水系统不足以应对潜在的洪水事件,对住宅区构成风险. 随着返回时间的延长,洪水的严重程度会增加,这凸显了系统升级的必要性.
科学领域:
- 环境工程 环境工程
- 水文学的水文学
- 城市规划 城市规划
背景情况:
- 城市洪水是一个越来越严重的问题,气候变化,城市化和越来越多的不透气表面加剧了这一问题.
- 有效的雨水排水系统对于减轻城市环境中洪水风险至关重要.
- 马拉蒂亚中部地区的现有基础设施需要对抗洪灾能力进行评估.
研究的目的:
- 分析和校准马拉蒂亚中部现有雨水排水系统的洪水性能.
- 评估这些系统在各种降雨情景和回归周期下的容量.
- 为了确定由于雨水管理不充分而对住宅区的潜在风险.
主要方法:
- 使用地理信息系统 (GIS) 和InfoWorks ICM软件开发水文模型.
- 模拟5,10分钟和15分钟的降雨事件,用于2,5年和10年的回归周期.
- 模型的验证使用现场观察到的降雨和洪水数据,使用R2,NSE,RMSE和MAE指标进行性能评估.
主要成果:
- 该研究发现,马拉蒂亚目前的八个雨水排水系统不足以完全管理雨水.
- 模拟表明,随着返回时间的增加,洪水的严重程度会升级.
- 现有的系统在住宅区造成重大财产损失和潜在生命损失的风险.
结论:
- 马拉蒂亚中部目前的雨水排水系统不足以防止在重大降雨事件期间发生洪水.
- 显然需要升级和改进雨水基础设施,以提高城市的抗洪能力.
- 这些发现强调了住宅区对洪水的脆弱性以及强大的排水解决方案的重要性.
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