Climate Change, Coastal Hazards and Sea Level Rise: Resources for Practitioners
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Transcript of Climate Change, Coastal Hazards and Sea Level Rise: Resources for Practitioners
Climate Change, Coastal Hazards and Sea Level Climate Change, Coastal Hazards and Sea Level Rise: Resources for PractitionersRise: Resources for Practitioners
Dr. Clark AlexanderSkidaway Institute of Oceanography
University of Georgia
Applied Coastal Research Laboratory Georgia Southern University
• Tropical cyclones (hurricanes)
• Extratropical storms (nor’easters)
• Sea-level rise
• Shoreline erosion
• Localized strong wind
Natural Hazards for Coastal Regions
• Over half of the world’s population lives less than 100 miles from the ocean
• Sea-level is rising in the ocean basins from changing climate
• More extremes in weather
• Increased intensity of tropical cyclones globally
Hurricane/Tropical Storms 1995-2000
Current Sea Level Trends (NOAA)Current Sea Level Trends (NOAA)
www.tidesandcurrents.noaa.gov
www.tidesandcurrents.noaa.gov
Satellite Altimetry = Absolute “Eustatic” Sea Level Rise
Jason-2 (2008-P)
TOPEX-POSEIDON (1993-2001)
Jason-1 (2001-2008)
NOAA Sea Level Trends for North America
http://www.tidesandcurrents.noaa.gov
National Climate Assessment and Development Advisory Committee http://ncadac.globalchange.gov/ Year
Major Consequences of Sea Level Rise
• saltwater intrusion
• storm damage/more frequent flooding
• less efficient drainage and septic systems
• loss of intertidal habitat
• increased shoreline erosion and retreat
A Survey of Web Portals, Viewers and ToolsGeorgia Coastal Hazards Portalhttp://gchp.skio.uga.edu
North Carolina Coastal Atlashttps://www.nccoastalatlas.org/http://coastal.geology.ecu.edu/NCCOHAZ/index.html
USGS National Assessment of Shoreline Change Projecthttp://coastalmap.marine.usgs.gov/national/shorelc/
NOAA Sea Level Rise and Coastal Flooding Impacts Viewerhttp://www.csc.noaa.gov/slr/viewer/
Climate Central - Surging Seashttp://sealevel.climatecentral.org/
US Global Change Research Programhttp://www.globalchange.gov
Governors’ South Atlantic Alliance Coast & Ocean PortalAMBUR Coastal Hazard Vulnerability Assessment Toolhttp://gsaaportal.org/
Clark AlexanderSkidaway Institute of [email protected]
US Global Change Research Program
http://www.globalchange.gov/
Vulnerability to Sea Level Rise
USGS National Assessment of Shoreline Change Project
http://coastalmap.marine.usgs.gov/national/shorelc/
Shoreline Change Rates
Georgia Coastal Hazards Portal (GCHP) – gchp.skio.uga.edu
NOAA Sea Level Rise and Coastal Flooding Impacts Viewer
http://www.csc.noaa.gov/slr/viewer/
Sea Level Rise Scenarios
Georgia Coastal Hazards Portal (GCHP) – gchp.skio.uga.edu
https://www.nccoastalatlas.org/http://coastal.geology.ecu.edu/NCCOHAZ/index.html
North Carolina Coastal Atlas
VA Center for Coastal Resources Management
NOAA Coastal Services Center
http://www.csc.noaa.gov/digitalcoast/
NOAA/BOEM Marine Cadastre
http://marinecadastre.gov/tools/
Governors’ South Atlantic Alliance Coast &
Ocean Portal
http://gsaaportal.org/
AMBUR Coastal Hazard Vulnerability Assessment Tool
Gulf of Mexico Alliancehttp://www.gulfofmexicoalliance.org/
Mid Atlantic Alliancehttp://portal.midatlanticocean.org/
West Coast Alliancehttp://portal.westcoastoceans.org/
HVA Team and Partners
Boynton, 2014
All pilot areas ~1000 km estuarine shoreline; variety of shoreline types, public and private ownership; tourism important; robust datasets.
•NC – Nags Head, Rodanthe, Ocracoke, Cape Hatteras National Seashore, Pea Island NWR.
•SC – Charleston Co.; N. Edisto R.; Edisto I.; Wadmalaw I.; multiple quads.
•GA – Camden Co.; Kings Bay NSB, Cumberland I. National Seashore.
•FL – Guana Mantanzas Tolomato NERR, NASA, Canaveral National seashore, SJWRMD. Marsh and mangrove habitats.
Pilot Areas
Georgia shoreline change and inundation HVAs
Boynton, 2014
http://sealevel.climatecentral.org/
Surging Seas Submergence Risk Map
Initial Condition2007
2100
SLAMM (v6) Results for Georgia