EESB18H3 Lecture Notes - Lecture 10: Sediment Transport, Scarborough Bluffs, Coastal Erosion
12 Dec 2012
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As sea level rises, the equilibrium position of sand bodies offshore moves inland. Barrier islands are strongly affected (they"re like sand bars and forms in front of the coast and in front there"s usually a lagoon) A small rise in seal level leads to a large migration of the barrier islands. Many of these have been extensively developed, particularly in the southern us. During the last deglaciation, sea levels rose about 130 m and this rise was so rapid that most offshore sand bodies are still moving inland to compensate. Developed barrier islands are a hazard for this reason. Hog island is migrating inland, leading to the loss of the town of broadwater. Eustatic a global sea level, something about expansion of water, coastal erosion. Another way you can get local changes in sea level is by the sinking of continentns, depression of the continents example of a water ballon bulging on one side (iso-static change, rebound)
