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Simulating hydrological impact of environmental change in the Abukuma watershed, Japan

机译:模拟日本Abukuma流域环境变化的水文影响

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The WEP model was applied to the Abukuma watershed in Japan (5,400 km2). The model is validated with observed discharges at several locations in 2002, and then applied to simulations for 2003 and 2004 in a time step of 1 hour and a grid cell size of 500 m. The simulation results showed good agreements with observed in both low streamfiow and flood hydrographs. The hydrological impacts of possible future environmental changes in the watershed, i.e. increase in air temperature, rainfall intensity and patterns, land use alteration and urbanization, are simulated using the WEP model. Evaporation, surface runoff and groundwater recharge are found sensitive to the environmental changes, and the hydrographs are also modified.
机译:WEP模型应用于日本的Abukuma流域(5,400平方千米)。该模型通过2002年在多个位置的观测放电进行验证,然后以1小时的时间步长和500 m的网格单元应用于2003和2004年的模拟。模拟结果表明,在低水位流和洪水水位图中都观察到了良好的一致性。使用WEP模型模拟了流域未来可能发生的环境变化的水文影响,即气温升高,降雨强度和格局,土地利用的变化和城市化。发现蒸发,地表径流和地下水补给对环境变化敏感,并且对水位图也进行了修改。

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