Understanding the detectability of potential changes to the 100-year peak storm surge

Robert L. Ceres (), Chris E. Forest and Klaus Keller
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Robert L. Ceres: The Pennsylvania State University
Chris E. Forest: The Pennsylvania State University
Klaus Keller: The Pennsylvania State University

Climatic Change, 2017, vol. 145, issue 1, No 16, 235 pages

Abstract: Abstract In many coastal communities, the risks driven by storm surges are motivating substantial investments in flood risk management. The design of adaptive risk management strategies, however, hinges on the ability to detect future changes in storm surge statistics. Previous studies have used observations to identify changes in past storm surge statistics. Here, we focus on the simple and decision-relevant question: How fast can we learn from past and potential future storm surge observations about changes in future statistics? Using Observing System Simulation Experiments, we quantify the time required to detect changes in the probability of extreme storm surge events. We estimate low probabilities of detection when substantial but gradual changes to the 100-year storm surge occur. As a result, policy makers may underestimate considerable increases in storm surge risk over the typically long lifespans of major infrastructure projects.

Date: 2017
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DOI: 10.1007/s10584-017-2075-0

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