Projected 21St Century Coastal Flooding In The Southern California Bight. Part 2: Tools For Assessing Climate Change-Driven Coastal Hazards And Socio-Economic Impacts

Details

• Journal Title:
  Journal of Marine Science and Engineering
• Personal Author:
  Erikson, Li ; Barnard, Patrick ; O’Neill, Andrea ; Wood, Nathan ; Jones, Jeanne ; Finzi Hart, Juliette ; Vitousek, Sean ; Limber, Patrick ; Hayden, Maya ; Fitzgibbon, Michael ; Lovering, Jessica ; Foxgrover, Amy
  More +
• NOAA Program & Office:
  Sea Grant
• Sea Grant Program:
  SCU (Southern California Sea Grant)
• Description:
  This paper is the second of two that describes the Coastal Storm Modeling System (CoSMoS) approach for quantifying physical hazards and socio-economic hazard exposure in coastal zones affected by sea-level rise and changing coastal storms. The modelling approach, presented in Part 1, downscales atmospheric global-scale projections to local scale coastal flood impacts by deterministically computing the combined hazards of sea-level rise, waves, storm surges, astronomic tides, fluvial discharges, and changes in shoreline positions. The method is demonstrated through an application to Southern California, United States, where the shoreline is a mix of bluffs, beaches, highly managed coastal communities, and infrastructure of high economic value. Results show that inclusion of 100-year projected coastal storms will increase flooding by 9–350% (an additional average 53.0 ± 16.0 km2) in addition to a 25–500 cm sea-level rise. The greater flooding extents translate to a 55–110% increase in residential impact and a 40–90% increase in building replacement costs. To communicate hazards and ranges in socio-economic exposures to these hazards, a set of tools were collaboratively designed and tested with stakeholders and policy makers; these tools consist of two web-based mapping and analytic applications as well as virtual reality visualizations. To reach a larger audience and enhance usability of the data, outreach and engagement included workshop-style trainings for targeted end-users and innovative applications of the virtual reality visualizations.
• Source:
  J. Mar. Sci. Eng., 6, 76
• DOI:
  https://doi.org/10.3390/jmse6030076
• Document Type:
  Journal Article
• Rights Information:
  CC BY
• Compliance:
  Library
• Download URL:
  https://repository.library.noaa.gov/view/noaa/33041/noaa_33041_DS1.pdf
• File Type:
  [PDF - 4.32 MB]
• Collection(s):
  Sea Grant Publications
• Main Document Checksum:
  urn:sha256:44797f9f83809d20c089b5818587de6ea50bfcf8993a660279ec61976b2c05bb