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首页> 外文期刊>Journal of Hydrology >Development of reservoir operation functions in SWAT plus for national environmental assessments
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Development of reservoir operation functions in SWAT plus for national environmental assessments

机译：国家环境评估的SWAT Plus水库运营职能的发展

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摘要

The Soil and Water Assessment Tool (SWAT) model is one of the most extensively used watershed-scale models across the world. In recent years, in order to enhance the potential of SWAT code maintenance and future development, a completely reconstructed version of SWAT, dubbed SWAT+, has been just released. In addition to the new model structure in SWAT+, reservoir operation functions have been added to improve the performance of model simulations. Before conducting watershed-scale model simulations, reservoir functions of SWAT+ were further coupled with the automatic calibration tool, IPEAT, to better consider the interactions among reservoir parameters and the corresponding hydrologic processes. In this study, a total of 123 reservoirs were simulated at daily scale across the contiguous United States (CONUS). A series of reference values of reservoir parameters (total 15) were categorized based on different classifications: (i) reservoir capacity; (ii) reservoir release; (iii) climate conditions; and, (iv) reservoir storage and release. Overall results showed that the performance of reservoir simulations at daily scales is satisfactory by commonly adopted statistical measures. In different scenarios, SfNFD (seasonal flood control drawdown days during non-flood season) (from 5 to 126 days), EfFLD (exclusive flood control drawdown days) (from 0.1 to 2.1 days) and EfFLC (exclusive flood control constant flow) (from 4.8 to 6.5 ha-m) are sensitive parameters and the converged parameter ranges were close to each other but not for other parameters. The recommended parameter ranges may be embedded by varying sources of uncertainty. However, the proposed calibration guidelines provide fast and accessible reference for future SWAT+ studies especially in subjects related to reservoir operations.
机译：土壤和水评估工具（SWAT）模型是世界上最广泛使用的流域模型之一。近年来，为了提高SWAT码维护和未来发展的潜力，刚刚发布了一个完全重建的SWAT版本，被称为SWAT +。除了SWAT +中的新模型结构外，还添加了储层操作功能，以提高模型模拟的性能。在进行流域模型模拟之前，SWAT +的储层功能与自动校准工具IPeat进一步加上，以更好地考虑储层参数之间的相互作用和相应的水文过程。在这项研究中，在连续的美国（Conus）的日常规模中，共模拟了123个水库。基于不同的分类，对储层参数的一系列参数（总共15）的参考值进行分类：（i）储层能力; （ii）储层释放; （iii）气候条件; （第四次）水库储存和释放。总体结果表明，日常尺度储层模拟的性能因常用统计措施而令人满意。在不同的场景中，SFNFD（非汛期季节性防洪净化天）（从5到126天），Effld（独家洪水控制绘制天）（从0.1到2.1天）和Efflc（独家洪水控制恒定流量）（从4.8到6.5 ha-m）是敏感参数，融合参数范围彼此接近但不适用于其他参数。建议的参数范围可以通过不同的不确定性来嵌入。然而，建议的校准指南为未来的SWAT +研究提供了快速和可访问的参考，特别是在与储层操作相关的受试者中。

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