Evaluation of coastal inundation hazard for present and future climates

Condon, Andrew; Sheng, Y. Peter

doi:10.1007/s11069-011-9996-0

Cited by 46 publications

(26 citation statements)

References 69 publications

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“…When a storm surge occurs at the Tsengwen River mouth and meets the high water level in the river, the water cannot drain into the coastal ocean, resulting in severe flood inundation in the lowland region [32]. To evaluate this extreme inundation condition, the peak flow for a 200-year return period was used at the upstream boundary condition: the storm surge condition is illustrated in Figure 7.…”

Section: Effect Of Storm Surge Combined With Freshwater Dischargementioning

confidence: 99%

Modeling Flood Inundation Induced by River Flow and Storm Surges over a River Basin

Chen

Liu

2014

Water

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Low-lying coastal regions and their populations are at risk during storm surge events and high freshwater discharges from upriver. An integrated storm surge and flood inundation modeling system was used to simulate storm surge and inundation in the Tsengwen River basin and the adjacent coastal area in southern Taiwan. A three-dimensional hydrodynamic model with an unstructured grid was used, which was driven by the tidal elevation at the open boundaries and freshwater discharge at the upriver boundary. The model was validated against the observed water levels for three typhoon events. The simulation results for the model were in reasonable agreement with the observational data. The model was then applied to investigate the effects of a storm surge, freshwater discharge, and a storm surge combined with freshwater discharge during an extreme typhoon event. The super Typhoon Haiyan (2013) was artificially shifted to hit Taiwan: the modeling results showed that the inundation area and depth would cause severe overbank flow and coastal flooding for a 200 year return period flow. A high-resolution grid model is essential for the accurate simulation of storm surges and inundation. OPEN ACCESSWater 2014, 6 3183

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Section: Effect Of Storm Surge Combined With Freshwater Dischargementioning

confidence: 99%

Modeling Flood Inundation Induced by River Flow and Storm Surges over a River Basin

Chen

Liu

2014

Water

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“…Although the effect of a warmer climate remains uncertain, a number of studies seem to reach the conclusion that the frequency of hurricanes will decrease but that these events will be on average more intense (e.g., Knutson et al, 2010). This might lead to changes in water levels for a given return period, even if preliminary works suggest that the impact could be very moderate compared to the effect of SLR (e.g., Condon and Sheng, 2012). …”

Section: Discussionmentioning

confidence: 99%

Assessing storm surge hazard and impact of sea level rise in the Lesser Antilles case study of Martinique

Krien¹,

Dudon²,

Roger³

et al. 2017

Nat. Hazards Earth Syst. Sci.

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Abstract. In the Lesser Antilles, coastal inundations from hurricane-induced storm surges pose a great threat to lives, properties and ecosystems. Assessing current and future storm surge hazards with sufficient spatial resolution is of primary interest to help coastal planners and decision makers develop mitigation and adaptation measures. Here, we use wave-current numerical models and statistical methods to investigate worst case scenarios and 100-year surge levels for the case study of Martinique under present climate or considering a potential sea level rise. Results confirm that the wave setup plays a major role in the Lesser Antilles, where the narrow island shelf impedes the piling-up of large amounts of wind-driven water on the shoreline during extreme events. The radiation stress gradients thus contribute significantly to the total surge -up to 100 % in some cases. The nonlinear interactions of sea level rise (SLR) with bathymetry and topography are generally found to be relatively small in Martinique but can reach several tens of centimeters in low-lying areas where the inundation extent is strongly enhanced compared to present conditions. These findings further emphasize the importance of waves for developing operational storm surge warning systems in the Lesser Antilles and encourage caution when using static methods to assess the impact of sea level rise on storm surge hazard.

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“…It highlights that during extreme events wave radiation stress has a major role than wave-induced stress in controlling the surge effect along shallow coastal waters. Condon and Sheng 67 carried out a detailed evaluation of coastal inundation in the present and future climate. Their study area covered the Florida coast using the integrated storm-surge model developed by Sheng et al 66 with optimal storm ensemble and multivariate interpolation.…”

Section: Development Of Coupled Modelsmentioning

confidence: 99%

Coastal Inundation Research:An overview of the Process

2017

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Coastal inundation is the flooding of coastal zone resulting from increased river discharge, spring tides, severe storms, or generation of powerful waves from tectonic activity (tsunami). This article discusses the critical factors that contribute to coastal inundation. Among the probable factors that cause coastal flooding and destruction, storm surge is the most frequent, and hence this article provides a detailed evaluation of the progress made in storm inundation research. Recent advances in coastal inundation modelling include efforts to understand the nonlinear dynamic interaction of near-shore waves, wind and atmospheric pressure with still water sea level and coastal currents, and their combined effects on storm surge along the coast and interaction with coastal morphology. An advanced storm-surge model comprises different modules, viz. an atmospheric component, and two ocean components for surge and wave simulations; these modules are coupled with each other. The nesting of regional coastal model with an ocean-wide model captures the far-field boundary forcing of extreme events that usually originate from the warm open ocean. Even though significant advancements reported on the efficiency and accuracy of storm surge and inundation prediction, further studies are required to understand the nonlinear interaction of storm surge with coastal landforms and their vegetation (land cover). In the context of rising sea level, increased tropical cyclone activity and rapid shoreline change, it is pertinent to evaluate the future flooding risk associated with landfall of tropical cyclones in densely populated coastal cities.

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Evaluation of coastal inundation hazard for present and future climates

Cited by 46 publications

References 69 publications

Modeling Flood Inundation Induced by River Flow and Storm Surges over a River Basin

Modeling Flood Inundation Induced by River Flow and Storm Surges over a River Basin

Assessing storm surge hazard and impact of sea level rise in the Lesser Antilles case study of Martinique

Coastal Inundation Research:An overview of the Process

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