| Summary: | The Atlantic Coast of the United States is subjected to damages from wind and flooding that result from hurricanes. This study seeks to quantify the combined effects of hurricane winds and resulting flooding in the Boston region. In order to achieve this objective, the annual exceedance probability (AEP) and mean recurrence intervals (MRI) of hurricane effects (water elevation and wind speed) need to be calculated. In this study, the simulation results from a project performed by the North Atlantic Coastal Hazard System (NACCS) will be utilized to perform the statistical analysis of hurricane effects. The negative log-likelihood estimator will be used to evaluate the distribution of hurricane effects. The joint hazard surfaces and contours will be generated based on Gaussian copula transformation. The marginal hazard curves of joint hazard surfaces will be validated using NACCS water elevation statistical results and ASCE 7-16 wind hazard maps, respectively. The outcomes of this study include the joint hazard surfaces and contours, which will consider the epistemic uncertainty of hurricane effects. The produced joint hazard contours at specific MRIs can be used to assess the resilience of potential engineering projects, perform loss estimation while considering wind and flood hazards, define limit states in multi-hazard design, and evaluate the risk of existing coastal structures.
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