Climate change and sea level rise

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Climate change and sea level rise

  1. 1. Annual high tides, such as this one at Waikiki Beach in 2009, will become more frequent as sea level rises. Credit: Chris Conger, UHSea Grant College Program
  2. 2. Flooding in the Mapunapuna area of Honolulu due to heavy rains and high tides. The storm drain system, located below sea level,was retrofitted with one-way drains and the flooding was largely mitigated. Credit: D. Oda
  3. 3. Seasonal high surf at Laniakea, O’ahu results in annual road closures. Credit: Dolan Eversole, NOAA Sea Grant Coastal StormsProgram Coordinator, Pacific Region
  4. 4. Regional armoring due to long-term chronic erosion has resulted in the loss of sandy beach in Lanikai, O‘ahu. Credit: UH Sea Grant
  5. 5. Digital representation of the windward coastal plain near Kualoa, O‘ahu. Areas in red are currently 1 meter (3.3 feet) above meanhigh tide. Low areas may be among the first to experience drainage problems as sea level rises. Credit: Mr. Matthew Barbee & Dr.Charles Fletcher, UH Coastal Geology Group
  6. 6. Access to Honolulu International Airport runways would be compromised with a 3-foot rise in sea level. Credit: Mr. Matthew Barbee& Dr. Charles Fletcher, UH Coastal Geology Group
  7. 7. A 3-foot rise in sea level also would impact stormwater drainage in the high-density Ala Moana commercial area. Credit: Mr.Matthew Barbee & Dr. Charles Fletcher, UH Coastal Geology Group
  8. 8. The FEMA flood zone in some areas on the north shore of Kaua‘i requires structures to be build at a minimum elevation. Decision-makers could require or incentivize similar measures to adapt to sea-level rise through accommodation. Credit: Dennis Hwang
  9. 9. There are limited relocation options along sections of the Kamehameha Highway, O‘ahu that are threatened by sea-level rise.Emergency armoring currently protects the road. Similarly, decision-makers could use sea walls to adapt to sea-level rise throughprotection in areas where retreating from the coastline is not possible. Credit: Dolan Eversole, NOAA Sea Grant Coastal StormsProgram Coordinator, Pacific Region
  10. 10. Coastal construction setback from the shoreline provides an open beach area for public use at Kahala Beach, O‘ahu. Decision-makers could use setbacks to adapt to sea-level rise through retreat. Credit: Dolan Eversole, NOAA Sea Grant Coastal StormsProgram Coordinator, Pacific Region

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