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Seeking Direct Coastal Erosion Associated Factors in the United States Shorelines

Chen, Le
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Abstract

Sea-level rise is projected to have a wide range of effects on coastal environments, developments, and infrastructure. Based on the U.S. Geological Survey (USGS) Coastal Vulnerability Index (CVI) system data, we developed a two-stage model; firstly, the Bayesian Network (BN) is used to define relationship among driving forces; secondly, the logistic regression is used to evaluate direct association for direct factors related to Shoreline Erosion. Using this two-stage approach, increased sea-level (OR: 4.03[3.72,4.38]), higher Wave Height (OR: 0.56[0.54,0.61]), smaller Tidal Range (OR: 1.68[1.52,1.87]) and smaller Coastal Slope (OR: 0.45[0.44,0.49]) are directly associated with Shoreline Erosion in Atlantic Ocean; Geomorphology setting (OR: 9.35[6.33,14.18]) in high risk regions, such as beaches, is identified as direct association with Shoreline Erosion in Gulf of Mexico; Smaller tidal range (OR: 0.10[0.04,0.27] directly associated with Shoreline Erosion in Pacific Ocean. These direct factors were evaluated predictive ability with accuracy rates 0.59 and AUC 0.63.

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Date
2016-12-14
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Research Projects
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Keywords
Bayesian Network, Direct Factors, Shoreline Erosion
Citation
Chen, Le. "Seeking Direct Coastal Erosion Associated Factors in the United States Shorelines." 2016. Thesis, Georgia State University. https://doi.org/10.57709/9409224
Embargo Lift Date
2016-11-22
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