Storms Trap Sediment in San Francisco Estuary, Impacting Water Quality
The researchers studied how sediment moves through the San Francisco Estuary after storms. They measured sediment levels at the Golden Gate over a tidal cycle and tracked sediment plumes up the estuary. They found that sediment trapping occurred during storms in both years, with more sediment trapped in 2016 than in 2017. Sediment resuspension was higher during flood tides, indicating an erodible pool outside the estuary. The formation of estuarine turbidity maxima played a role in trapping sediment. More research is needed to understand long-term sediment flux at the Golden Gate.