A Holistic Framework for Evaluating Adaptation Approaches to Coastal Hazards and Sea Level Rise: A Case Study from Imperial Beach, California
| Autor: | Juliano Calil, Sarah Jenkins, Jeff Giliam, Joe Ellis, Jim Nakagawa, Matt Jamieson, David Revell, Phil King, Alex Snyder, Chris Helmer |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
vulnerability assessment
coastal resilience 010504 meteorology & atmospheric sciences Geography Planning and Development living shoreline coastal hazards 010501 environmental sciences Aquatic Science 01 natural sciences Biochemistry coastal management public trust Ecosystem services risk communication Vulnerability assessment Economic cost adaptation planning Recreation TD201-500 0105 earth and related environmental sciences Water Science and Technology Managed retreat Coastal hazards Water supply for domestic and industrial purposes business.industry Environmental resource management ecological and recreation valuation Hydraulic engineering sea level rise adaptation Public trust adaptation pathways Business cost–benefit analysis Coastal management TC1-978 |
| Zdroj: | Water, Vol 13, Iss 1324, p 1324 (2021) Water Volume 13 Issue 9 |
| ISSN: | 2073-4441 |
| Popis: | Sea level rise increases community risks from erosion, wave flooding, and tides. Current management typically protects existing development and infrastructure with coastal armoring. These practices ignore long-term impacts to public trust coastal recreation and natural ecosystems. This adaptation framework models physical responses to the public beach and private upland for each adaptation strategy over time, linking physical changes in widths to damages, economic costs, and benefits from beach recreation and nature using low-lying Imperial Beach, California, as a case study. Available coastal hazard models identified community vulnerabilities, and local risk communication engagement prioritized five adaptation approaches—armoring, nourishment, living shorelines, groins, and managed retreat. This framework innovates using replacement cost as a proxy for ecosystem services normally not valued and examines a managed retreat policy approach using a public buyout and rent-back option. Specific methods and economic values used in the analysis need more research and innovation, but the framework provides a scalable methodology to guide coastal adaptation planning everywhere. Case study results suggest that coastal armoring provides the least public benefits over time. Living shoreline approaches show greater public benefits, while managed retreat, implemented sooner, provides the best long-term adaptation strategy to protect community identity and public trust resources. |
| Databáze: | OpenAIRE |
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