摘要
结合河段洪水演算法及流域汇流瞬时单位线法中几种汇流曲线的基本概念,对汇流曲线的单位(因次)问题进行了分析和解释,明确给出了汇流曲线的单位(因次)。结果表明,在流域汇流瞬时单位线法中长期以来认为时段单位线为无因次的,该提法不妥,时段单位线应为有因次,具有流量单位。
Combining with a brief review of the basic conception on concentration curves of flood waves in river and instantaneous unit hydrograph in watershed, the unit （or dimension） of some common-used concentration curves are analyzed, interpreted in detail and given clearly. Especially in past, that interval unit hydrograph of instantaneous unit hydrograph for watershed runoff concentration was not thought as unit system or dimension is an incorrect statement. The unit of interval unit hydrograph should have dimension and be as same as the unit of discharge.
出处
《水电能源科学》
2008年第3期4-6,共3页
Water Resources and Power
基金
国家自然科学基金资助项目(49871019)
山东农业大学科研基金资助项目(23091)
关键词
汇流曲线
瞬时单位线
时段单位线
单位(因次)
concentration curve
instantaneous unit hydrograph
interval unit hydrograph
unit （dimension）
