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Coastal Erosion Hydrological (Sea Level Rise) Meteorological (Storms and Hurricanes) Geological (Subsidence) Biological (Bioerosion) Manmade Structures.

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Presentation on theme: "Coastal Erosion Hydrological (Sea Level Rise) Meteorological (Storms and Hurricanes) Geological (Subsidence) Biological (Bioerosion) Manmade Structures."— Presentation transcript:

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2 Coastal Erosion Hydrological (Sea Level Rise) Meteorological (Storms and Hurricanes) Geological (Subsidence) Biological (Bioerosion) Manmade Structures (Jetties, Groins, Breakwaters, etc.)

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5 http://www.ecy.wa.gov/programs/se a/coast/erosion/washaway.html

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8 Outer Banks Map U.S. Department of the Interior National Park Service

9 October 1989 May 1990 Average Distance Change= 180ft/0.6 yr November 1993 Average Distance Change= 670 ft/3.6 yrs November 1995 Average Distance Change= 440ft/1.9 yrs

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11 "Before" and "after" photos show the loss of sand on Louisiana's Raccoon Island caused by Hurricane Andrew in 1992. More than a mile of previously existing sandy beach (above) was removed by the hurricane, leaving behind a patchy island formation (below). The remaining island shown close up in the picture on the bottom is bordered in a rectangle in the picture on the top and is all that remains of the original island. Back to Session II

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