Fig. 2: Temporal variations of water and sediment in the Sanmenxia and Xiaolangdi reservoirs.

A Time series of daily water inflow and outflow for the Sanmenxia Reservoir. B Water inflow and outflow, C water level and storage, D water-surface slope, E inflow and outflow SSC, F sediment inflow and outflow, and G erosion and cumulative erosion for the Xiaolangdi Reservoir. H Sedimentation and cumulative sedimentation in downstream reaches between Xiaolangdi and Huayuankou stations. Note: inflow to the Xiaolangdi Reservoir equals the outflow from the Sanmenxia Reservoir; daily inflow SSC data for the Sanmenxia Reservoir and daily inflow and outflow SSC data in January–June and October–December for the Xiaolangdi Reservoir are unavailable.