Slowly but surely: Exposure of communities and infrastructure to subsidence on the US east coast

Ohenhen, Leonard O., Shirzaei, Manoochehr and Barnard, Patrick L., (2024). Slowly but surely: Exposure of communities and infrastructure to subsidence on the US east coast. PNAS nexus, 3(1), pgad426-n/a

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  • Sub-type Newspaper article
    Author Ohenhen, Leonard O.
    Shirzaei, Manoochehr
    Barnard, Patrick L.
    Title Slowly but surely: Exposure of communities and infrastructure to subsidence on the US east coast
    Appearing in PNAS nexus
    Volume 3
    Issue No. 1
    Publication Date 2024-01-01
    Place of Publication United Kingdom
    Publisher Oxford University Press
    Start page pgad426
    End page n/a
    Language eng
    Abstract Coastal communities are vulnerable to multihazards, which are exacerbated by land subsidence. On the US east coast, the high density of population and assets amplifies the region's exposure to coastal hazards. We utilized measurements of vertical land motion rates obtained from analysis of radar datasets to evaluate the subsidence-hazard exposure to population, assets, and infrastructure systems/facilities along the US east coast. Here, we show that 2,000 to 74,000 km2 land area, 1.2 to 14 million people, 476,000 to 6.3 million properties, and >50% of infrastructures in major cities such as New York, Baltimore, and Norfolk are exposed to subsidence rates between 1 and 2 mm per year. Additionally, our analysis indicates a notable trend: as subsidence rates increase, the extent of area exposed to these hazards correspondingly decreases. Our analysis has far-reaching implications for community and infrastructure resilience planning, emphasizing the need for a targeted approach in transitioning from reactive to proactive hazard mitigation strategies in the era of climate change.
    Keyword Coastal hazard
    Land subsidence
    Infrastructure hazards
    Exposure
    Copyright Holder author(s)
    Copyright Year 2024
    Copyright type Creative commons
    DOI , https://doi.org/10.1093/pnasnexus/pgad426
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    Created: Thu, 24 Oct 2024, 04:20:50 JST by Haideh Beigi on behalf of UNU INWEH