Sea-level rise in Hawaii: Implications for future shoreline locations and Hawaii coastal management

Bohlander, Andrew and Conger, Chris and Eversole, Dolan (2010) Sea-level rise in Hawaii: Implications for future shoreline locations and Hawaii coastal management. In: Shifting Shorelines: Adapting to the Future,The 22nd International Conference of The Coastal Society , June 13-16, 2010 ,Wilmington, North Carolina,

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Official URL: http://nsgl.gso.uri.edu/coastalsociety/TCS22/paper...

Abstract

Management of coastal development in Hawaii is based on the location of the certified shoreline, which is representative of the upper limit of marine inundation within the last several years. Though the certified shoreline location is significantly more variable than long-term erosion indicators, its migration will still follow the coastline's general trend. The long-term migration of Hawaii’s coasts will be significantly controlled by rising sea level. However, land use decisions adjacent to the shoreline and the shape and nature of the nearshore environment are also important controls to coastal migration. Though each of the islands has experienced local sea-level rise over the course of the last century, there are still locations across the islands of Kauai, Oahu, and Maui, which show long- term accretion or anomalously high erosion rates relative to their regions. As a result, engineering rules of thumb such as the Brunn rule do not always predict coastal migration and beach profile equilibrium in Hawaii. With coastlines facing all points of the compass rose, anthropogenic alteration of the coasts, complex coastal environments such as coral reefs, and the limited capacity to predict coastal change, Hawaii will require a more robust suite of proactive coastal management policies to weather future changes to its coastline. Continuing to use the current certified shoreline, adopting more stringent coastal setback rules similar to Kauai County, adding realistic sea-level rise components for all types of coastal planning, and developing regional beach management plans are some of the recommended adaptation strategies for Hawaii. (PDF contains 4 pages)

Item Type: Conference or Workshop Item
Title: Sea-level rise in Hawaii: Implications for future shoreline locations and Hawaii coastal management
Personal Creator/Author:
CreatorsEmail
Bohlander, Andrewandrewbo@hawaii.edu
Conger, Chris
Eversole, Dolan
Date: 2010
Funders: National Oceanographic and Atmospheric Administration, U.S. EPA Coastal Management Branch, U.S. Geolgocial Survey, NOAA Sea Grant
Event Title: Shifting Shorelines: Adapting to the Future,The 22nd International Conference of The Coastal Society
Event Type: Conference
Event Location: Wilmington, North Carolina
Event Dates: June 13-16, 2010
Issuing Agency: The Coastal Society
Uncontrolled Keywords: TCS22
Subjects: Management
Environment
Policies
Item ID: 3890
Depositing User: Cynthia Murray
Date Deposited: 29 Jul 2010 12:41
Last Modified: 29 Sep 2011 16:47
Related URLs:
URI: http://aquaticcommons.org/id/eprint/3890

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