Abstract
This paper presents a comparison of two hydrodynamic models of the Weeks Bay sub-estuary (Alabama, USA). One model was developed using the Environmental Fluid Dynamic Code (EFDC). The resulting model was compared to an existing hydrodynamic model (of the same water body) that was developed using the Adaptive Hydraulic modeling system (ADH). Comparisons were performed in terms of predicted water surface elevations in Weeks Bay. The computational grid was created using GEFDC (a mesh generator for EFDC) and NOAA’s coastline and bathymetric data. The results showed that the EFDC model provides comparable water surface elevation (WSE) estimations for five out of seven control points located in the Weeks Bay study area. R2 values for those points range between 0.88 and 0.99. Root mean square error values are shown to be lower than 0.15 m in those cases. For the rest of the control points, R2 values range from 0.73 to 0.87 (RMSE range: 0.2 - 0.35), showing that the EFDC model provides acceptable estimations of WSE when compared to the ADH model WSE output. A finer computational mesh may improve EFDC WSE estimations for Weeks Bay as reported in the literature.
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References
Martin, J.L., McCutcheon, S.C.: Hydrodynamics and Transport in Water Quality Modeling. CRC Press, Boca Raton (1999)
Riggs, A.A., Mortazavi, B.: Benthic Nitrogen Cycling in Weeks Bay, Alabama. In: Bays and Bayous Symposium, Science, Industry, Community: Building Bridges to Coastal Health, http://www.mobilebaynep.com/images/uploads/library/2010ProceedingsFinal.pdf
NOAA Ocean Service: Gulf of Mexico News. Office of Ocean and Coastal Resource Management, http://coastalmanagement.noaa.gov/news/docs/gomnews0109.pdf
McAnally, W.H., Evans, D., Martin, J.L., Sloan, J., Alarcon, V.J.: Sediment and Mercury Path and Fate Modeling: Progress Report. In: 2011 Northern Gulf Institute Annual Conference, Mobile, AL (2011)
Tetratech, Inc.: Draft user’s manual for environmental fluid dynamics code Hydro Version (EFDC-Hydro) Release 1.00. Tetra Tech., Inc., Fairfax, Virginia (2002)
US National Oceanic and Atmospheric Administration National Geophysical Data Center, http://www.ngdc.noaa.gov/mgg/coastal/crm.html
Berger, R.C., Tate, J.N.: Guidelines for Solving Two Dimensional Shallow Water Problems with the ADaptive Hydraulics (ADH) Modeling System, USACE Research and Development Center (2008)
Alarcon, V.J., McAnally, W.H., Diaz-Ramirez, J., Martin, J., Cartwright, J.H.: A Hydrological Model of the Mobile River Watershed. In: Maroulis, G., Simos, T.E. (eds.) Computational Methods in Science and Engineering: Advances in Computational Science, vol. 1148, pp. 641–645. American Institute of Physics, Melville (2009)
United States Environmental Protection Agency, EPA. BASINS, Better Assessment Science Integrating point & non-point Sources, http://water.epa.gov/scitech/datait/models/basins/index.cfm
Thacker, W.C.: Comparison of Finite-Element and Finite-Difference Schemes. Part II: Two-Dimensional Gravity Wave Motion. Journal of Physical Oceanography 8, 680–689 (1978)
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Alarcon, V.J., McAnally, W.H., Pathak, S. (2012). Comparison of Two Hydrodynamic Models of Weeks Bay, Alabama. In: Murgante, B., et al. Computational Science and Its Applications – ICCSA 2012. ICCSA 2012. Lecture Notes in Computer Science, vol 7334. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31075-1_44
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DOI: https://doi.org/10.1007/978-3-642-31075-1_44
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