Salinity, Nutrient, and Sediment Dynamics in the Pontchartrain Estuary

摘要: MCCORQUODALE, A.J.; ROBLIN, R.J.; GEORGIOU, I.Y., and HARALAMPIDES, K.A., 2009. Salinity, nutrient, sediment dynamics in the Pontchartrain Estuary. Journal of Coastal Research, SI(54), 71–87. West Palm Beach (Florida), ISSN 0749-0208. Algal blooms have been recorded Estuary when elevated nutrient loads combine with other ambient conditions, e.g., low salinity turbidity. Nutrient were quantified incorporated into a dynamic mass balance model for upper to determine timing conditions that can lead algal blooms. General loading relationships developed tributaries where data available; these extended estimate ungauged areas. The annual water yield drainage basin was found be 500 mm. loadings from all sources 21,000 t (13 g m 22 y 21 ) total nitrogen 2700 (1.6 phosphorus Lakes Maurepas, Pontchartrain, Borgne. calculated 42 km . concentrations Mississippi River combined estimated leakage through Bonnet Carre ´ Spillway obtain related river stage. mass-balance applied assess occurrence period 1990–2008; predicted five observed but also indicated potential two more not documented. strongest northwest quadrant Lake although highest dissolved inorganic southwest