期刊名称：Journal of Environmental Hydrology (ältere Jahrgänge)
印刷版ISSN：1058-3912
电子版ISSN：1996-7918
出版年度：2010
卷号：18
出版社：IAEH
摘要：For the Gorganrod watershed, Iran, a tributary of the Caspian Sea, dominant discharge is important for calculation of suspended load values, design of hydraulic structures and determination of river optimal width. It is necessary to determine effective and bankful discharge, and the mean annual flood. The total suspended sediment curve is obtained using the suspended sediment curve and the histogram of daily output where the exponent is effective discharge. A value of bankful discharge is determined using sections of river width and finding the minimum surface width ratio. Statistics of river flooding in the Gorganrod were used to determine annual flood average. Since discharge was small in the 2.33-yr return period and its frequency was high, the discharge was not effective in transferring sediment. Effective discharge is introduced as the river dominant discharge that has sediment carrying capacity over the long term.
