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9. How will the following types of coastlines be affected by rising sea level? C

ID: 155115 • Letter: 9

Question

9. How will the following types of coastlines be affected by rising sea level? Consider several factors that were brought up in the lecture, such as slope of the shoreline area and how the characteristics of these coastlines (such as, type of material/sediments and landscape features within each coastline type) may change during the process of sea level rise. (6 points)

            a. Sandy beach on a coastal plain with a barrier island in front of it

            b. Marshy, wetland, flat beach or you could say estuarine

            c. Rocky cliffs, steep slope to the coastal area

Explanation / Answer

If sea level rises 39 inches (one meter) in the next century, most wetlands will be lost and many

narrow barrier islands may disintegrate.

Paradoxically, gradual sea level rise can generate new barrier islands. Rising seas create

shallow bays that develop barrier islands in the mouths of the bays along certain types of

coastline. . . However, extremely rapid sea level rise