Impacts of sea level rise on future storm-induced coastal inundations over massachusetts coast

Changsheng Chen (), Zhaolin Lin (), Robert C. Beardsley (), Tom Shyka (), Yu Zhang (), Qichun Xu (), Jianhua Qi (), Huichan Lin () and Danya Xu
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Changsheng Chen: University of Massachusetts
Zhaolin Lin: University of Massachusetts
Robert C. Beardsley: Woods Hole Oceanographic Institution
Tom Shyka: Northeastern Regional Association of Coastal Ocean Observing Systems (NERACOOS)
Yu Zhang: Shanghai Ocean University
Qichun Xu: University of Massachusetts
Jianhua Qi: University of Massachusetts
Huichan Lin: University of Massachusetts
Danya Xu: Southern Marine Science and Engineering Guangdong Laboratory

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2021, vol. 106, issue 1, No 16, 375-399

Abstract: Abstract Hurricanes (tropical cyclones) and nor'easters (extratropical cyclones) are two major storm systems for flood risk over the Massachusetts coast. Severe coastal inundation usually happens when wind-induced waves and storm surges coincide with high tides. A Northeast Coastal Ocean Forecast System (NECOFS) was established and placed into the 24/7 forecast operations starting in 2007. Using a well-validated “end to end” FVCOM inundation model of NECOFS, we examined the impact of climate change-induced sea-level rise (SLR) on the future extratropical storms-induced coastal inundation over the Massachusetts coast. The assessment was done by making the model experiments to project the storm-induced inundation over the coastal areas of Scituate and Boston Harbors with different SLR scenarios under a hundred-year storm condition. The results suggest that with sustained SLR, the northeastern US coast will be vulnerable more severely to wave runup-induced splashing/overtopping than wind-induced storm surges. This finding is consistent with the change in the intensity of storm-generated surface waves in the last decade. The model also suggests that the responses of surge and surface waves to SLR are fully nonlinear. The assessment of the impacts of SLR on the future storm-induced coastal inundation should be investigated with a model including wave-current interactions.

Keywords: Sea level rise will aggravate the storm-induced coastal inundation; Sea level rise will strengthen surface waves and thus increase flood risk from wave runup-induced overtopping; Responses of surge and wave runup to sea level rise are fully nonlinear and required to be investigated with wave-current interactions. (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (2)

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DOI: 10.1007/s11069-020-04467-x

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