Mixing in Shallow Coastal Sea: Case Study

by Shing-Fu Hsueh, Basin Mgr.; Delaware River Water Quality Planning, N.J. Dept. of Environmental Protection, Div. of Water Resources, Trenton, N.J.,
Robert C. Ahlert, Prof.; Dept. of Chemical and Biochemical Engrg., Rutgers Univ., New Brunswick, N.J.,

Serial Information: Journal of the Environmental Engineering Division, 1978, Vol. 104, Issue 6, Pg. 1291-1302

Document Type: Journal Paper


Two tracer studies were used to characterize mixing and tidal exchange in a New Jersey coastal sea. Several dredged channels and complex flow patterns due to islands and embayments cause the system to exchange slowly and to be mixed relatively well internally. Tracer output at the mouth displayed multiple peaks, a long delay, and detectable concentrations for several days. A transient lumped-parameter, reacter network model was calibrated with the second data set. Agreement between the model and field data was good. The simulation did not perform well with the first data set. Further, the output was relatively insensitive to input. This model is not well suited to water quality planning and management for the estuary studied.

Subject Headings: Case studies | Shallow water | Coastal environment | Seas and oceans | Probe instruments | Channel flow | Wells (water) | Water quality | New Jersey | United States

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