The present study aimed to analyze the comprehensive relationships between suspended sediment yield,

and rainfall and runoff characteristics on storm basis in Khamsan Representative Watershed with an area

of 4193 ha in Kurdistan Province, Iran. In due course, 9 storm events occurred during study period were

analyzed 4 of which generated runoff and consequently yielded sediment. Different bivariate regression

models were then applied for estimating sediment yield. The results of the analysis verified better performance

of linear regression developed based on maximum rainfall intensity with respective determination and

efficiency coefficients, and estimation error of 0.843, 0.84 and 39%.