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Going to the Beach?

Going to the Beach?. Instructions on Completing Activities for the Coastal Geomorphology Laboratory. Activity 1: Analyze sea cliff loss. Task 1: Calculate erosion along the Suffolk coastline in the U.K. using ground survey. SUBMISSION IS ADVANCING AT A FRIGHTFUL SPEED. 1 meter per flag.

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Going to the Beach?

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  1. Going to the Beach? Instructions on Completing Activities for the Coastal Geomorphology Laboratory

  2. Activity 1: Analyze sea cliff loss

  3. Task 1: Calculate erosion along the Suffolk coastline in the U.K. using ground survey

  4. SUBMISSION IS ADVANCING AT A FRIGHTFUL SPEED 1 meter per flag

  5. Task 1: Calculate erosion along the Suffolk coastline in the U.K. using ground survey • Finish table • Calculate erosion rates

  6. Task 2. Analyze change in a coastal landslide using aerial photography Looking east

  7. Task 2. Analyze change in a coastal landslide using aerial photography Bluff (small cliff) retreat from landsliding: how fast? how much?

  8. Task 2. Analyze change in a coastal landslide using aerial photography

  9. Task 2. Analyze change in a coastal landslide using aerial photography Analyze 1976 and 1995 and then answer: how much farmland has been lost (sq. meters) and how fast? • Download these files from the web page version of the assignment • Print ’76

  10. Task 2. Analyze change in a coastal landslide using aerial photography Analyze 1976 and 1995 and then answer: how much farmland has been lost (sq. meters) and how fast? • Print ’76 • Color lost farmland • Make 10 m grid • Count up lost area • Measure biggest distance lost & calculate rate of retreat

  11. Task 3. Analyze change at Point Reyes using a historical map

  12. Task 4. Compare rates of cliff retreat

  13. Activity 1: Task 5 Calculating very long-term rates of cliff retreat using offshore rocks and sea stacks ~6000 YbpPretty close to today… Approx. last major glacial event Sea level change curves

  14. Activity 1: Task 5 Calculating very long-term rates of cliff retreat using offshore rocks and sea stacks (10 points)

  15. Activity 1: Task 5 Calculating very long-term rates of cliff retreat using offshore rocks and sea stacks

  16. Overview of Activity 2 You study change in depositional (beach) contexts, using a mixture of maps, aerial photography, and satellite images.

  17. Activity 2 • Task 1. Analyze human modification of California beach: Humboldt Bay • Task 2. Analyze change accomplished by major storms • Study the effect of Hurricanes on the Dauphin Island (a barrier island)

  18. Task 1. Analyze human modification of California beaches You analyze Humboldt Bay

  19. Task 1. Analyze human modification of California beaches You analyze Humboldt Bay… add Jetties

  20. Task 2. Analyze change accomplished by major storms

  21. Task 2. Analyze change accomplished by major storms

  22. Draw out the area lost, using scale

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