Estimation of the annual discharge of suspended matter by the rivers of North Siberia and the Far East

New estimates of the suspended sediment fluxes from the medium and large rivers of Siberia and the Russian Far East are presented on the basis of the calculations over the period of the instrumental surveys. The method of calculations accounting for the intra-annual discharge variability is considered and its hydrogeological substantiation is given. The obtained estimates are compared with the results of previous studies. The role of the geological evolution and glaciation history concerning the contemporary suspended sediment fluxes is shown. The prevalence of the valley (coastal and slope) generation of the suspended flux over the watershed generation on the territory of the Russian drainage basin is assumed.