Date post: | 19-Dec-2015 |
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Coastal Erosion
• Hydrological (Sea Level Rise)
• Meteorological (Storms and Hurricanes)
• Geological (Subsidence)
• Biological (Bioerosion)
• Manmade Structures (Jetties, Groins, Breakwaters, etc.)
October 1989 May 1990
Average Distance Change=180ft/0.6 yr
November 1993Average Distance Change=
670 ft/3.6 yrs
November 1995Average Distance Change=
440ft/1.9 yrs
"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.