Three-Dimensional Modeling of Storm Surge and Inundation Including the Effects of Coastal Vegetation

Lapetina, Andrew; Sheng, Y. Peter

doi:10.1007/s12237-013-9730-0

Cited by 34 publications

(20 citation statements)

References 11 publications

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“…Recent studies involving 2-D depth-averaged models (Chen et al, 2007;Le Bouteiller and Venditti, 2015) have quantified the effect of vegetation through parameterization as "form drag" as opposed to "skin friction". To account for 3-D vertical structures, estuary-scale models have implemented both mean and turbulent flow impacts of vegetation (Temmerman et al, 2005;Kombiadou et al, 2014;Lapetina and Sheng, 2014). In addition to impacts on the flow field, the presence of vegetation also results in wave attenuation.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity analysis of a coupled hydrodynamic-vegetation model using the effectively subsampled quadratures method (ESQM v5.2)

et al. 2017

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Abstract. Coastal hydrodynamics can be greatly affected by the presence of submerged aquatic vegetation. The effect of vegetation has been incorporated into the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system. The vegetation implementation includes the plant-induced three-dimensional drag, in-canopy waveinduced streaming, and the production of turbulent kinetic energy by the presence of vegetation. In this study, we evaluate the sensitivity of the flow and wave dynamics to vegetation parameters using Sobol' indices and a least squares polynomial approach referred to as the Effective Quadratures method. This method reduces the number of simulations needed for evaluating Sobol' indices and provides a robust, practical, and efficient approach for the parameter sensitivity analysis. The evaluation of Sobol' indices shows that kinetic energy, turbulent kinetic energy, and water level changes are affected by plant stem density, height, and, to a lesser degree, diameter. Wave dissipation is mostly dependent on the variation in plant stem density. Performing sensitivity analyses for the vegetation module in COAWST provides guidance to optimize efforts and reduce exploration of parameter space for future observational and modeling work.

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Section: Introductionmentioning

confidence: 99%

Sensitivity analysis of a coupled hydrodynamic-vegetation model using the effectively subsampled quadratures method (ESQM v5.2)

et al. 2017

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“…Another important ecosystem service is protecting coastal areas from storm impacts, as suggested by an estimate that wetlands provide US$23.2 billion per year in storm protection services in the USA (Costanza et al 2008). Storm surge attenuation by wetlands depends on the extent of wetland area surrounding a coastal landscape, storm strength (e.g., Wamsley et al 2010;Hu et al 2015), and biomechanical properties of wetland vegetation (e.g., Zhao and Chen 2014;Lapetina and Sheng 2014).…”

Section: Introductionmentioning

confidence: 99%

A Field Study of How Wind Waves and Currents May Contribute to the Deterioration of Saltmarsh Fringe

Karimpour

Chen

Twilley

2015

Estuaries and Coasts

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Deltaic landscapes, such as the Mississippi River Delta, are sites of extensive conversion of wetlands to open water, where increased fetch may contribute to erosion of marsh edges, increasing wetland loss. A field experiment conducted during a storm passage tested this process through the observations of wave orbital and current velocities in the fringe zone of a deteriorating saltmarsh in Terrebonne Bay, Louisiana. Incident waves seaward of the marsh edge and wave orbital and current velocities immediate landward of the marsh edge were measured. Through a dimensional analysis, it shows that the current and orbital velocities in the marsh fringe were controlled by the incident waves, inundation depth, submergence ratio, and vegetation density. Similarly, it is shown that the longshore currents in the inundated saltmarsh fringe depended on the local wave-induced momentum flux, vegetation submergence, and vegetation density in the fringe zone. The cross-shore current showed the presence of a return flow in the lower region of the velocity profile. A high correlation between the current direction and the local flow-wave energy ratio as well as the vegetation submergence and density is found, indicating the important role of surface waves in the fringe flow landward of an inundated wetland under storm conditions. The field observations shed light on the potential ecological consequences of increased wave activities in coastal saltmarsh wetlands owing to subsidence, sea level rise, limited sediment supply, increases in wind fetch, and storm intensity.

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“…Sheng et al [52,53] developed a vegetation model which incorporates the effects of vegetation on mean flow and turbulence in the water column. The vegetation resolving model showed that, during hurricanes, total inundation volume can be reduced by up to 40% due to the presence of vegetation.…”

Section: Discussion and Future Workmentioning

confidence: 99%

Towards the Development of an Operational Forecast System for the Florida Coast

Paramygin

Sheng

Davis

2017

JMSE

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A nowcasting and forecasting system for storm surge, inundation, waves, and baroclinic flow for the Florida coast has been developed. The system is based on dynamically coupled CH3D and SWAN models and can use a variety of modules to provide different input forcing, boundary and initial conditions. The system is completely automated and operates unattended at pre-scheduled intervals as well as in event-triggered mode in response to Atlantic-basin tropical cyclone advisories issued by the National Hurricane Center. The system provides up to 72-h forecasts forward depending on the input dataset duration. Spatially, the system spans the entire Florida coastline by employing four high-resolution domains with resolutions as fine as 10-30 m in the near-shore and overland to allow the system to resolve fine estuarine details such as in the Intracoastal Waterway and minor tributaries. The system has been validated in both hindcast and nowcast/forecast modes using water level and salinity data from a variety of sources and has been found to run robustly during the test periods. Low level products (e.g., raw output datasets) are disseminated using THREDDS while a custom defined web-based graphical user interface (GUI) was developed for high level access.

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Three-Dimensional Modeling of Storm Surge and Inundation Including the Effects of Coastal Vegetation

Cited by 34 publications

References 11 publications

Sensitivity analysis of a coupled hydrodynamic-vegetation model using the effectively subsampled quadratures method (ESQM v5.2)

Sensitivity analysis of a coupled hydrodynamic-vegetation model using the effectively subsampled quadratures method (ESQM v5.2)

A Field Study of How Wind Waves and Currents May Contribute to the Deterioration of Saltmarsh Fringe

Towards the Development of an Operational Forecast System for the Florida Coast

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