Estimating of annual sediments of Duhok dam by using river turbidity water samples

Abstract EN

An estimation technique was developed in this study based on runoff water turbidity and soil concentration sampling data in the Duhok Dam catchments, were used to develop relation between turbidity value and suspended sediment.

The main purpose of this study is to estimate the annual sedimentation for the Duhok Dam watershed through taking continually sampling from the seasonal runoff which outlet to the Duhok seasonal river.

To achieve this work, standard curve of the soil concentration (Kg/m3) and turbidity meter (NTU) was prepared, daily rainfall data and total runoff for the rainfall season 2008-2009 was taken for the study.

The study found relationship between suspended sediment and turbidity at a study catchments, which implemented to estimate erosion .

For the purpose of increase accuracy in collection of rainfall data, the samples must be include all rainfall events.

The total sedimentation was estimated as (4082.055 Ton) and the approximate annual soil erosion can be easily determined depending on the watershed area