相关实验视频
Updated: May 22, 2025

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Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
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一个相结合的优化对冲基于规则的水库运营和水力动力学模型框架,用于河流洪水风险管理
Ashrumochan Mohanty1, Bhabagrahi Sahoo1, Ravindra Vitthal Kale2
1School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
Water research
|March 13, 2025
概括
气候变化影响水库运营,危及堤的覆盖. 这项研究引入了先进的水库运行模型,可显著降低洪水风险和堤故障20%以上,使下游社区更安全.
科学领域:
- 环境科学环境科学
- 水文学的水文学
- 适应气候变化 适应气候变化
背景情况:
- 气候变化和人类活动破坏了水文静止,在洪水期间挑战了水库运营.
- 不稳定的条件和复杂的洪水动态需要改进的水库管理策略.
研究的目的:
- 开发和评估层次的水库运行框架,以管理下游的洪水风险在非静止条件下.
- 整合先进的预测和水力动力学建模,以增强水库规则曲线.
主要方法:
- 开发了单阶段对冲 (1SH) 和双阶段对冲 (2SH) 储运行模型,并通过粒子群优化 (PSO) 进行了优化.
- 将PSO模型与HEC-RAS-2D水力动力学建模相结合,以评估下游关键堤 (DCL) 的洪水风险.
- 利用基于SWAT-Pothole和Wavelet的双向长期短期存储器 (WBiLSTM) 用于使用GFS天气数据进行流入预测.
主要成果:
- 2SH-PSOH2D框架在降低洪水风险方面表现出最高的效率.
- 在DCL站实现了平均21%的峰值流深降低和22.28%的堤防故障风险降低.
- 验证了使用布拉马尼河上伦加利水库的拟议模型的有效性.
结论:
- 开发的2SH-PSOH2D框架为管理高洪水事件和减少下游洪水危险提供了有效的方法.
- 拟议的方法可应用于全球其他水库系统,以加强洪水管理和降低风险.
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