长期连续水文模型在大型河流盆地河流流模拟中的性能
Zhuo Zhang1,2
1State Key Laboratory of Climate System Prediction and Risk Management, School of Geography, Nanjing Normal University, Nanjing, 210023, China. mercury1214@163.com.
Scientific reports
|July 2, 2025
概括
这项研究比较了土壤和水评估工具 (SWAT) 和水文工程中心.
科学领域:
- 水文学的水文学
- 环境科学 环境科学
- 水资源管理 水资源管理
背景情况:
- 水文模型对于洪水风险管理和了解环境变化影响至关重要.
- 持续的水文建模有助于评估长期的水文过程和环境变化.
- 选择可靠的水文模型对于有效的盆地洪水风险管理至关重要.
研究的目的:
- 为了比较土壤和水评估工具 (SWAT) 和水文工程中心的水文建模系统 (HEC-HMS) 的性能.
- 评估它们对于大型河流流域的长期连续水文模拟的适用性.
- 评估它们在预测河流排放和管理洪水风险方面的有效性.
主要方法:
- 在珍珠河盆地使用SWAT和HEC-HMS进行长期连续模拟.
- 利用相同的输入数据和可比的模型配置进行公平的比较.
- 使用纳什-萨特克利夫效率系数来评估模型性能.
主要成果:
- SWAT和HEC-HMS都表现出令人满意的河流排放预测能力 (纳什-萨克利夫系数>0.7).
- 在验证期间,SWAT由于其修改的土壤保护服务 (SCS) 损失模型和高级校准,实现了更高的准确性.
- HEC-HMS提供可定制的选项,并显示出大规模盆地应用的潜力.
结论:
- 这两种水文模型都是有效的连续模拟和排放预测在大盆地.
- SWAT提供了更准确的结果,而HEC-HMS在模型构建中提供了更大的灵活性.
- 在珍珠河流域等广泛的河流系统中,HEC-HMS显示了长期水文模拟的巨大潜力.
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