The turbidity maximum is due to the suspended matter flocculation near the
tip of the salt wedge, and re-suspension of sediment due to tidal
stirring (Framiñan and Brown, 1996). The turbidity front can be
easily identified in satellite images; its modal position is located
near the limit of the marine water intrusion. (Acha et al., 2008;
Framiñan and Brown, 1996; Mianzan et al., 2001).