Publication:
Implementation and validation of an unstructured coupled wave-circulation model for hurricane wave and storm surge inundation modeling in Puerto Rico

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Authors
González-López, Juan O.
Embargoed Until
Advisor
Mercado, Aurelio
College
College of Arts and Sciences - Sciences
Department
Department of Marine Sciences
Degree Level
M.S.
Publisher
Date
2010
Abstract
An unstructured wave-circulation coupled model is implemented and validated for Puerto Rico. The model is used to simulate Hurricane Georges and Hurricane Omar to validate the hurricane-forced storm surge water levels and wave fields. Two parametric wind field formulations are used to produce the wind fields and evaluate the effects of each formulation on wave and water level results. To explore the effect of mesh resolution on wave-induced forces and storm surge water levels a comparison is done between the results of the unstructured coupled model and a simulation using the circulation model coupled to a high resolution (30 meters) structured wave model in the area of La Parguera. Results show a good agreement between the observed and the modeled water levels. The steep and complex bathymetry demands that the unstructured mesh is further optimized to properly resolve the wave and circulation processes at the finer near shore scale.

Un modelo acoplado no-estructurado de olaje y circulación es implementado y validado para Puerto Rico. El modelo se utiliza para simular el Huracán Georges y el Huracán Omar para validar la marejada ciclónica y el oleaje forzado por huracanes. Dos formulaciones paramétricas se utilizan para simular el campo de vientos y evaluar sus efectos en la marejada ciclónica y el oleaje resultante. Para explorar el efecto de la resolución de la malla en las fuerzas inducidas por oleaje y la marejada ciclónica se comparan el modelo acoplado no-estructurado y un acoplamiento con un modelo estructurado de olas a una alta resolución de 30 metros en el área de La Parguera. Los resultados demuestran un buen acuerdo entre la marejada ciclónica observada y la simulada. La batimetría abrupta y compleja de la región exige que la malla no-estructurada sea optimizada para resolver apropiadamente los procesos de oleaje y circulación a pequeña escala en la costa.
Keywords
Storm surge water levels - Reserva Natural de La Parguera (P.R.),
Unstructured wave-circulation coupled model,
ADCIRC+unSWAN model,
Hurricane simulation
Cite
González-López, J. O. (2010). Implementation and validation of an unstructured coupled wave-circulation model for hurricane wave and storm surge inundation modeling in Puerto Rico [Thesis]. Retrieved from https://hdl.handle.net/20.500.11801/1574