Urban Runoff Forecasting System Based on Improved SCS Model
Urban Runoff Forecasting System Based on Improved SCS Model
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发表时间：
2012
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通讯作者：
Sun Yuansen
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作者：
Sun Yuansen
针对城市发展引起的下垫面变化及其对城市径流的影响，采用改进的SCS模型，根据历史降雨径流数据估算城市现状值Cn。根据城市规划实际，对城市现状值Cn进行了估算。利用MatLab建立了城市径流预报系统，并应用于济南市小清河流域，对1990-2005年的径流形势变化进行了预测，结果表明，该预报系统是有效、合理的，可以为决策者提供更加合理的土地利用类型，避免下垫面的不合理变化，减少洪涝灾害的发生。
Urban development has led to change of underlying surface and it has an impact on urban runoff.Improved SCS model is used to estimate the urban status value CN based on historical rainfall-runoff data.According to the urban planning,the change of CN is calculated.the direct impact of land use patterns change on runoff is predicted.The urban runoff forecasting system is established with Matlab and it applies to Xiaoqing River Basin in Jinan City.The change of runoff situation from 1990 to 2005 is predicted.The results show that the forecasting system is effective and reasonable and it can provide a more rational land use type for decision-maker to avoid unreasonable change of underlying surface and reduce the disastrous flood.