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Dynamic modeling of barrier island response to hurricane storm surge under future sea level rise
  • Published Date:
    2018
  • Source:
    Climatic Change, 149(3-4), 413-425.
Filetype[PDF-2.42 MB]


Details:
  • DOI:
    http://dx.doi.org/10.1007/s10584-018-2245-8
  • Personal Authors:
  • Description:
    Sea level rise (SLR) has the potential to exacerbate the impacts of extreme storm events on the coastal landscape. This study examines the coupled interactions of SLR on storm-driven hydrodynamics and barrier island morphology. A numerical model is used to simulate the hydrodynamic and morphodynamic impacts of two Gulf of Mexico hurricanes under present-day and future sea levels. SLR increased surge heights and caused overwash to occur at more locations and for longer durations. During surge recession, water level gradients resulted in seaward sediment transport. The duration of the seaward-directed water level gradients was altered under SLR; longer durations caused more seaward-directed cross-barrier transport and a larger net loss in the subaerial island volume due to increased sand deposition in the nearshore. Determining how SLR and the method of SLR implementation (static or dynamic) modulate storm-driven morphologic change is important for understanding and managing longer-term coastal evolution.

  • Document Type:
    Journal Article
  • Collection(s):
    National Ocean Service (NOS)
  • Funding:
    NA10NOS4780146
    NA16NOS4780208
  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
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