Google Earth exercise Module 6

Module 6 Google Earth Exercise Geology 22EW3 1. Later fall to early winter of '85. A large storm or hurricane could produce this result. 2. The sediment moved south and southwest, and mostly became submerged under the ocean. 3. Looks like powerful waves and ocean currents pushed the sediments from one island to another. The energy of the waves is extremely powerful and consistent in the winter, and that the coastline is massively eroded/weakened by a long history of these waves. 4. The longshore current is running south-southwest. 5. It seems that the most change comes in the wintertime, December through March, due to powerful winter storms. Although late summer to early fall sees an increase of activity as well, usually through hurricanes. 6. The strong winds and high tides of hurricanes can shift and/or submerge these barrier islands. As for the mainland, it is very flat, so it can easily become flooded, or have debris blown over great distances due to storm surges. In areas with low land and brackish water, the risk of water borne diseases, such as dysentery and cholera, increases. 7. In the Netherlands, engineers have devised parking garages that can also be used as floodwater storage- the water gets funneled into them, holding large volumes of water (and marine life) until it can be drained away at another time (similar to a dam). This would be a remarkable infrastructure plan for the region- a place for people to park during tourist season, and extra safeguards for storm season. A system of jetties and dikes, just like in the Netherlands, could be used as breakers and to protect the coastline. Restoring sea grasses and other vegetation to the barrier islands will help slow the rate of erosion.
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