Quantification of solid transport in the Algerian Chellif watershed

Abstract

In order to permit a rapid response for the request of the engineers for the estimate of quantity of the solid transport to the exutory of a watershed, a simple and easy tool to make in work has been set up. The adopted principal based on hydrometric data of measuring stations. A seasonery and annual analysis have permitted to define an appropriate estimating method of solid bringing. The study has been bought by analysing delivered daily means, by integral floods and finely by decomposition of floods. SIDI BEL-ATAR station to the exutory of a watershed of CHELLIF has been selected as an application. The obtained results are satisfactory enough because of the fact of the correlating coefficients of the models Qs = f(Q) are between 87% and 95% . The quantity the founded suspended sediment are situated between 8 and 38 millions of tans per year, they appear huge without doubts due to the vulnerability of CHELLIF basin in a relation to its erosion and the importance of its oued CHELIFF bringing liquid and turbulent and its torrential regime.