Natural Disasters Learning Objectives for Coastal Processes

26. Label and illustrate a diagram similar to figure 13-2, p.327 showing a deep ocean wave and how it moves (including the orbital motion of the water and the wave base)
27. Explain why and how waves break
28. Understand where the sand on the beach comes from; explain how dams can affect beaches
29. Explain what a rip current is and how to escape one
30. Describe how and why the longshore current forms / explain what the longshore drift is
31. Be able to indicate the direction of longshore current given photos of breaking waves, groins, or jetties
32. Explain the positive and negative effects of seawalls
33. Explain the benefits and drawbacks of groins; make a sketch showing the interaction between the longshore current (and drift) and groins; discuss where erosion and deposition takes place.
34. Explain the benefits and drawbacks of breakwaters; make a sketch showing the interaction between the longshore current (and drift) and a breakwater; discuss where erosion and deposition takes place.
35. Explain the benefits and drawbacks of jetties; make a sketch showing the interaction between the longshore current (and drift) and jetties; discuss where erosion and deposition takes place.
36. Explain the benefits and drawbacks of beach nourishment

Correctly answer questions that I posed during class

Correctly answer questions assigned as homework

look over the posted homework answers!