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Importance of Density Gradient Terms in Estuaries

by Donald C. Raney, Univ of Alabama, United States,
Kang-Ren Jin, Univ of Alabama, United States,



Document Type: Proceeding Paper

Part of: Soil Properties Evaluation from Centrifugal Models and Field Performance

Abstract:

In estuaries classified as well-mixed or unstratified, two-dimensional depth averaged models have often been applied with the density considered as constant. Calculations, based on measured prototype data in Apalachicola Bay, Florida, indicate that horizontal density gradients have a significant effect on the salinity distribution in certain portions of even a well-mixed estuary. The horizontal density gradient terms, have been added to a two-dimensional depth averaged numerical model. The model is applied to Apalachicola Bay, Florida both with and without the horizontal density gradient terms and a comparison of results presented.

Subject Headings: Density currents | Estuaries | Two-dimensional models | Numerical models | Mathematical models | Salt water | Flow measurement | Florida | United States

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