Tsunami Response in Semienclosed Tidal Basins Using an Aggregated Model
Publication: Journal of Hydraulic Engineering
Volume 138, Issue 8
Abstract
An aggregated model to evaluate tsunami response in semienclosed water bodies is presented in this work. The model is based on one-dimensional shallow water equations and can include long-wave external forcing such as a tsunami. It has been successfully validated against experimental data from a physical model, and its predictions for a case study have been compared with results from the Cornell multigrid coupled tsunami (COMCOT) model. The model can be used as a predictive tool because a calibration using a theoretical value for expansion and contraction losses has been performed and differences with the typical calibration are less than 10%, which is considered acceptable. This allows using the model in the absence of measured data, which is very difficult to obtain in case of a tsunami event. A case study for the Gulf of Cádiz (Spain) has been simulated with the COMCOT model. The aggregated model predicted the response for a harbor more accurately than for estuarine systems with tidal flats. Nevertheless, the aggregated model has been demonstrated as a useful general tool to predict the response of semienclosed tidal basins to a tsunami event, and hybrid models coupling advanced models to simulate ocean tsunami propagation with the model presented here would be useful in developing coastal warning alert systems.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors wish to thank two anonymous reviewers whose detailed comments greatly improved the quality of this manuscript.
References
Aubrey, D. G., and Speer, P. E. (1985). “A study of non-linear tidal propagation in shallow inlet/estuarine systems Part I: Observations.” Estuarine, Coastal Shelf Sci.ECSSD3, 21(2), 185–205.
Blevins, R. D. (1992). Fluid dynamics handbook, Krieger Publishing Company, Malabar, FL.
Bruun, P., Mehta, A. J., and Jonsson, I. G. (1978). Stability of tidal inlets: Theory and engineering, Elsevier Scientific Publishing Co., Amsterdam, The Netherlands.
Chanson, H. (1999). The hydraulics of open channel flow, Arnold, London.
Defant, A. (1961). Physical oceanography, Vol. 1, Pergamon, New York, 598.
Friedrichs, C. T., and Aubrey, D. G. (1988). “Non-linear tidal distortion in shallow well-mixed estuaries: A synthesis.” Estuarine, Coastal Shelf Sci.ECSSD3, 27(5), 521–545.
Friedrichs, C. T., and Madsen, O. S. (1992). “Nonlinear diffusion of the tidal signal in frictionally dominated embayments.” J. Geophys. Res., 97(C4), 5637–5650.JGREA2
Gjevik, B., et al. (1997). “Modeling tsunamis from earthquake sources near Gorringe Bank southwest of Portugal.” J. Geophys. Res., 102(C13), 27931–27949.JGREA2
Hughes, S. A. (1993). Physical models and laboratory techniques in coastal engineering, World Scientific Publ. Co. Ltd, Hackensack, NJ.
Imamura, F. (1996). “Review of tsunami simulation with a finite difference method.” Long-wave run-up models, World Scientific, Publ. Co. Ltd., Hackensack, NJ, 25–42.
Jain, M. (2002). “Hydraulics and stability of multiple-inlet bay systems: St. Andrew Bay, Florida.” M.S. thesis, Univ. of FL Gainesville, FL.
Keulegan, G. H. (1951). “Third progress report on tidal flow in entrances. Water level fluctuactions of basins in communication with seas.” Report 1146, National Bureau of Standards D, Washington, DC., 32.
Lighthill. (1978). Waves in fluids, Cambridge Univ. Press, Cambridge, U.K.
Liu, P. L.-F., Cho, Y.-S., Yoon, S. B., and Seo, S. N. (1994). “Numerical simulations of the 1960 Chilean tsunami propagation and inundation at Hilo, Hawaii.” Tsunami: Progress in prediction, disaster prevention and warning, Tsuchiya, Y. and Shuto, N., eds., Kluwer Academic Publishers, Berlin, Germany, 99–115.
Maas, L. R. M. (1997). “On the nonlinear Helmholtz response of almost-enclosed tidal basins with sloping bottoms.” J. Fluid Mech., 349, 361–380.JFLSA7
Omira, R., et al. (2009). “Design of a sea-level tsunami detection network for the Gulf of Cadiz.” Nat. Hazards Earth Syst. Sci., 9(4), 1327–1338.
Salles, P., Voulgaris, G., and Aubrey, D. G. (2005). “Contribution of nonlinear mechanisms in the persistence of multiple tidal inlet systems.” Estuarine, Coastal Shelf Sci.ECSSD3, 65(3), 475–491.
Stanev, E. V., Flöser, G., and Wolff, J. O. (2003). “First-and higher-order dynamical controls on water exchanges between tidal basins and the open ocean. A case study for the East Frisian Wadden Sea.” Ocean Dynam., 53(3), 146–165.
Titov, V. V., and Synolakis, C. E. (1998). “Numerical modeling of tidal wave runup.” J. Waterway, Port, Coastal, Ocean Eng., 124(4), 157–171.
van de Kreeke, J. (1988). “Hydrodynamics of tidal inlets.” Hydrodynamics and sediment dynamics of tidal inlets, coastal and estuarine studies 29, Aubrey, D. G. and Weishar, L., eds., Springer-Verlag, New York.
van de Kreeke, J. (1990). “Can multiple tidal inlets be stable?.” Estuarine, Coastal Shelf Sci.ECSSD3, 30(3), 261–273.
Wang, X., and Liu, P. L.-F. (2006). “An analysis of 2004 Sumatra earthquake fault plane mechanisms and Indian Ocean tsunami.” J. Hydraul. Res., 44(2), 147–154.JHYRAF
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 138 • Issue 8 • August 2012
Pages: 744 - 751
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Sep 23, 2009
Accepted: Jan 27, 2012
Published online: Jan 31, 2012
Published in print: Aug 1, 2012
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.