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August 11, 2025Scientific DataOpen Access

US-CoastEX: Observation-based probabilistic reanalysis of storm surge and sea level extremes for the United States

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Authors

JMJoao MorimDRD. J. RasmussenTWThomas Wahl

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Overview

Observation-based assessment reveals underestimations of extreme sea levels by 50% in vulnerable coastal areas, supporting risk planning.

Key Points

  • Findings indicate underestimation of 100-year extreme sea levels by 50% along much of the U.S. coast, especially in extreme storm regions.
  • The data shows traditional analyses often miss crucial factors, indicating a need for improved methods.
  • Analysis employs Bayesian methods on the U.S. tide gauge network, generating non-stationary storm surge distributions.
  • These estimates could enhance decision-making for coastal managers in areas lacking in-situ sea-level monitoring.

Cite This Study

Morim et al. (2025) studied this question.

synapsesocial.com/papers/68a360e70a429f79733296behttps://doi.org/10.1038/s41597-025-05730-1
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