Author Question: What are longshore currents, and how do they form? Why are they important to shoreline processes? ... (Read 68 times)

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
What are longshore currents, and how do they form? Why are they important to shoreline processes? What will be an ideal response?

Question 2

Why do waves bend or refract as they approach shorelines? What will be an ideal response?



otokexnaru

  • Sr. Member
  • ****
  • Posts: 314
Answer to Question 1

Waves strike the shore at some angle, causing the water between the breaker zone and the beach to
flow parallel to the shoreline. These long, narrow currents are longshore currents, and they flow in the
same general direction as the approaching waves. These currents continuously move sediment into and
away from beach systems.



Answer to Question 2

Waves rarely approach parallel to a shore, so one portion of a wave reaches wave base before another.
The early arrival begins to break, but the part that is still in deep water races ahead until it also
encounters wave base and begins to break. The net effect is that waves bend, so they are more nearly
parallel to the shoreline.




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

For a complete list of videos, visit our video library