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Using remarkability to define coastal flooding thresholds

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  • Frances C. Moore

    (University of California Davis)

  • Nick Obradovich

    (Max Plank Institute for Human Development)

Abstract

Coastal flooding is increasingly common in many areas. However, the degree of inundation and associated disruption depend on local topography as well as the distribution of people, infrastructure and economic activity along the coast. Local measures of flooding that are comparable over large areas are difficult to obtain. Here we use the remarkability of flood events, measured by flood-related posts on social media, to estimate county-specific flood thresholds for shoreline counties along the east coast of the United States. While thresholds in most counties are statistically-indistinguishable from minor flood thresholds of nearby tide gauges, we find evidence that several areas experience noticeable flooding at tide heights lower than existing flood thresholds. These 22 counties include several major cities such as Miami, New York, and Boston, with a total population over 13 million. Our analysis implies that large populations might currently be exposed to nuisance flooding not identified via standard measures.

Suggested Citation

  • Frances C. Moore & Nick Obradovich, 2020. "Using remarkability to define coastal flooding thresholds," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-019-13935-3
    DOI: 10.1038/s41467-019-13935-3
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    Cited by:

    1. Chloe Leach & Ben S. Hague & David M. Kennedy & Rafael C. Carvalho & Daniel Ierodiaconou, 2021. "Identifying oceanographic conditions conducive to coastal impacts on temperate open coastal beaches," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 109(1), pages 499-521, October.
    2. Frankie St. Amand & Daniel H. Sandweiss & Alice R. Kelley, 2020. "Climate-driven migration: prioritizing cultural resources threatened by secondary impacts of climate change," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 103(2), pages 1761-1781, September.
    3. Nicole Olynk Widmar & Kendra Rash & Courtney Bir & Benjamin Bir & Jinho Jung, 2022. "The anatomy of natural disasters on online media: hurricanes and wildfires," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 110(2), pages 961-998, January.
    4. Ben S. Hague & Andy J. Taylor, 2021. "Tide-only inundation: a metric to quantify the contribution of tides to coastal inundation under sea-level rise," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 107(1), pages 675-695, May.
    5. Kelton Minor & Esteban Moro & Nick Obradovich, 2023. "Adverse weather amplifies social media activity," Papers 2302.08456, arXiv.org.

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