3:30 PM - 4:45 PM
[AHW16-P03] Quantitative relationship between sediment storage in dam reservoir and coastal erosion as the basis of future sediment management and planning
Keywords:Dam reservoir, Coastal erosion, Future prediction, Sediment, River flow quantity, Turbidity
Based on the result that upstream dam sediment storage certainly increase downstream coastal erosion, we then explored a simple methodology to estimate dam sediment storage in future based on the relationship between hourly precipitation intensity and hourly sediment inflow to dam reservoir estimated by water inflow to dam reservoir and its turbidity. We found remarkable correlation between precipitation intensity and sediment inflow; hence we expect that future sediment inflow to upstream dam reservoirs and downstream coastal erosion could be estimated if hourly precipitation, water inflow and its turbidity are continuously monitored in the watershed of dam reservoirs.