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由于缺乏可用的水文测站实测流量记录,作者以38个断面的平槽流量估算值为基础,建立了对新南威尔士西部干旱地区的设计洪水计算方法,并导出了一个平槽流量与流域面积和河流平均坡度的公式.四种论据表明,该地区这种流量的平均重现期为2.5年,并且导出了计算其他重现期的频率系数.本法适用于新南威尔士西部的山丘地区,面积可达250km~2.本法为近似估算,它能提供无资料地区的洪水流量设计值.
In the absence of an available hydrographic station measured flow record, the authors established a design flood calculation method for arid regions of western New South Wales on the basis of an estimate of the flat trough flow over 38 cross-sections and derived a model of flat trough flow and catchment area And the average slope of the river.The four arguments show that the mean recurrence of such flows in the region is 2.5 years and that the frequency coefficients for other recurrences are derived.The law applies to the hills in western New South Wales , An area of up to 250km ~ 2. This method is an approximate estimate, it can provide flood waters in the non-material area design value.