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首页> 外文会议>International Conference on Water and Environment(WE-2003); 20031215-18; Bhopal(IN) >Determination Of Peak Discharge From Storm Rainfall And Watershed Characteristics
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Determination Of Peak Discharge From Storm Rainfall And Watershed Characteristics

机译：由暴雨和流域特征确定峰值流量

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摘要

This paper relates the peak discharge with storm rainfall and watershed characteristics using the concepts of the Soil Conservation Service Curve Number (SCS-CN) methodology (SCS, 1956) and the peak-discharge rating curve, employs the developed relationship to the data of three watersheds of U.S.A., and compares the model performance with that of the polynomial fits. The performance (efficiency in the range of 86.61-92.14%) of the SCS-CN-based relations is found to be fairly close to that of the polynomial fits (efficiencies in the range of 89.70-98.64%. The parameters of the former however bear some physical significance and those of the latter are not at all describable physically. The analysis also reveals that initial abstractions do not affect the peak discharge of a rainfall-runoff event.
机译：本文使用土壤保持服务曲线编号（SCS-CN）方法（SCS，1956）和峰值流量等级曲线的概念，将峰值流量与暴雨和分水岭特征联系起来，并利用已发展的关系与三个数据美国分水岭，并将模型性能与多项式拟合进行比较。发现基于SCS-CN的关系的性能（效率在86.61-92.14％范围内）与多项式拟合（效率在89.70-98.64％范围内）相当接近。但是，前者的参数该分析还揭示出初始提取不会影响降雨径流事件的峰值排放，但它们具有一定的物理意义，而后者在物理上根本无法描述。

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