Distributions of suspended sediment at high water in a macrotidal estuary

A turbidity maximum is consistently observed in the upper reaches of the Tamar estuary at high water. Neap tide suspended particulate matter (SPM) concentrations are typically 20 ppm at high water; spring tide concentrations are typically an order of magnitude greater. The location of the turbidity maximum is usually associated with the freshwater‐saltwater interface but occasionally occurs further up‐estuary. At neap tides the maximum is less...