Vertical Distribution of Suspended Sediment Concentration in the Unsaturated Jingjiang Reach, Yangtze River, China

The Rouse formula and its variants have been widely used to describe the vertical distribution of sediment concentration in sediment-laden flows equilibrium. Han’s extends non-equilibrium regimes, where diffusive flux is still assumed be Fickian. turbulent flow suspension regimes downstream a mega-reservoir, e.g., Three Gorges Reservoir, usually exhibit fractal unsaturated properties, respectively. To characterize non-Fickian dynamics suspended regime natural dammed rivers, this study proposes new for profile based on Hausdorff derivative advection–dispersion equation. In addition, we find that order related sizes degrees non-equilibrium. Compared formulae, performs better describing profiles Jingjiang Reach, approximately 100 km below Dam.