Modulation of sediment load recovery downstream of Three Gorges Dam in the Yangtze River

The sediment load in the Yangtze River downstream of the Three Gorges Dam (TGD) has substantially declined in recent decades. The decrease is more profound below the TGD, e.g., a 97% decrease at Yichang, compared with that at the delta apex, 1200 km downstream, e.g., a 75% decrease, implying along-river sediment recovery. Two large river...

A global synthesis of the effectiveness of sedimentation-enhancing strategies for river deltas and estuaries

Deltas worldwide are at risk of elevation loss and drowning due to relative sea-level rise. Management strategies to restore or enhance sedimentation on delta plains, Sedimentation-Enhancing Strategies (hereafter SES), are now being pursued in many deltas but there has been limited cross-disciplinary and cross-delta review. Here we compare 21...

Mechanisms of hyperconcentrated ßood propagation in a dynamic channel-floodplain system

The downstream peak discharge increase during hyperconcentrated floods in the Yellow River has been attributed to bed erosion, roughness reduction and floodplain effects. While great improvements have been made on the nderstandings of the roles of bed erosion and roughness reduction, the effects of floodplain remain poorly understood. Here, as a...

Wind-, golf-, en stromingsgeïnduceerd sedimenttransport in kribvakken langs de Waal

Kribvakmetingen Druten/Ochten juli 1996 tot april 1997. Onderzoek naar de sedimenthuishouding van een viertal kribvakken langs de Waal. Het onderzoek betreft een studie naar de hydrodynamische invloed van scheepvaart op de sedimenthuishouding en de invloed van eolisch zandtransport op de sedimenthuishouding in vier kribvakken langs de Waal. Het...