Visualize Complexity, Discover Solutions, Shatter Limits
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Visualize Complexity, Discover Solutions, Shatter Limits |
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Case Study: Savannah River-Savannah,GA |
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Client: |
Georgia Ports Authority |
| Project: |
Estuary Hydrodynamics
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Issues:
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The Georgia Ports Authority has been conducting a comprehensive study for a planned deepening of Savannah’s harbor. Environmentalists believe that a deepening would threaten inland freshwater habitats with seawater intrusion. A severe, five-year drought has hampered field data collection efforts, raising concerns that the data is not representative of typical hydrodynamic conditions. Because of the drought, river flows have been at record lows, leading to unprecedented seawater intrusion far inland, even without a deepened harbor. |
| ADMi's Role: | Researchers from the Florida Cooperative Fish and Wildlife Research Unit at the University of Florida, the USGS, and ADMi collaborated to develop a model that would predict seawater intrusion and inland tidal flooding over a wide range of hydrodynamic conditions. This was possible because of the availability of high quality water level and river flow data dating back 12 years - long before the advent of the drought. |
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Results:
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The model was developed in a few months, and is many times more accurate at predicting water levels (within an inch or two in a 9 foot tidal range), and salinities than a finite-difference model that has been under development for four years. Future work on the Savannah will focus on including the adjacent marshes in the model.
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