■ Generalized Summer plume
■ Generalized Winter plume
■ May 2001 surface salinity - ocean. Outline of May 2001 anomaly (unusual low-flow year) showing the 30 psu boundary of the plume. Source: NOAA "Seasonal and Interannual Variability" PowerPoint.
■ Estuary (source: generalized outline based on LCREP estuary map)