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Hydrological modeling in the Manas River Basin using soil and water assessment tool driven by CMADS

机译：使用CMADS驱动的水土评估工具对玛纳斯河流域进行水文建模

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Hydrological simulation in meteorological ungauged areas has always been a difficult problem for the study on atmospheric and hydrological coupling; meanwhile, it is also one of the important factors that restrict model development and basin water resource knowledge. To analyze the mechanism of atmospheric and hydrological coupling, this study quantitatively evaluated water cycle situation in basins covered with glaciers and snow, and chose the Manas River Basin (MRB) in China as the typical research area to verify the adaptability of the China Meteorological Assimilation Driving Datasets for the Soil and Water Assessment Tool model (CMADS). The SWAT model was firstly built to simulate water resources, then we calibrated the model with CMADS dataset and started localization in the Manas River Basin (MRB), China, and finally calibrated simulated runoff with observed data SWAT-CUP (SWAT Calibration and Uncertainty Programs). In addition, parameter sensitivity analysis, and parameter calibration and validation were also included in the present study. Results showed that the SWAT model could well reproduce the runoff process of two stations (Kenswat and Hongshanzui) in the research area by using data from CMADS. The simulation performed well on monthly scale in both stations, where R2 = (0,556÷0,999) and NSE = (0,937÷0,998), and also showed satisfactory effects, where R2 = (0,927÷0,993) and NSE = (0,836÷0,997).Our research suggests that the SWAT model can show satisfactory results through parameter calibration in areas with high glacial recharge rate. Moreover, CMADS can provide necessary meteorological data for SWAT simulations, and support parameter calibration and historical surface data analysis.
机译：大气非水文耦合研究一直是研究大气与水文耦合的难题。同时，它也是制约模型开发和流域水资源知识的重要因素之一。为了分析大气和水文耦合的机理，本研究定量评估了冰川和积雪覆盖的盆地的水循环情况，并选择了中国的玛纳斯河流域（MRB）作为典型的研究区域，以验证中国气象同化的适应性。土壤和水评估工具模型（CMADS）的驾驶数据集。首先建立SWAT模型来模拟水资源，然后使用CMADS数据集对模型进行校准，然后开始在中国玛纳斯河流域（MRB）进行本地化，最后使用观测数据SWAT-CUP校准模拟径流（SWAT校准和不确定性程序） ）。此外，本研究还包括参数敏感性分析以及参数校准和验证。结果表明，利用CMADS的数据，SWAT模型可以很好地再现研究区两个站点（肯斯瓦特和红山嘴）的径流过程。模拟在两个站点的月度尺度上都表现良好，其中R2 =（0,556÷0,999）和NSE =（0,937÷0,998），并且还显示出令人满意的效果，其中R2 =（0,927÷0,993）和NSE =（0,836÷0,997）我们的研究表明，SWAT模型可以在高冰川补给率地区通过参数校准显示令人满意的结果。此外，CMADS可以为SWAT模拟提供必要的气象数据，并支持参数校准和历史地面数据分析。

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