现行地貌单位线计算方法忽略了与坡地漫流有关的滞留时间。
The present methods of GIUH neglect any time delays associated with overland flow pathways.
地貌单位线(GIUH)基于流域地貌特征和概率方法，在我国许多地区得到广泛应用。
Geomorphologic instantaneous unit hydrograph (GIUH), based on the geomorphologic characteristics and probability method, has been widely used in China.
建立了基于线性动力波的地貌瞬时单位线模型。
A geomorphic instantaneous unit hydrograph model is developed based on linear dynamic wave.
以所得宽度函数为基础，考虑水动力参数的空间变化，构建了基于宽度函数的地貌瞬时单位线，用于实际流域的汇流计算，取得了较好的计算结果。
The GIUH based on the width function considering the spatial changes of hydrodynamic parameters is built, by which the results of flood routing of watershed are satisfactory.
以所得宽度函数为基础，考虑水动力参数的空间变化，构建了基于宽度函数的地貌瞬时单位线，用于实际流域的汇流计算，取得了较好的计算结果。
The GIUH based on the width function considering the spatial changes of hydrodynamic parameters is built, by which the results of flood routing of watershed are satisfactory.
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