« previous next »

Author Question: What are longshore currents, and how do they form? Why are they important to shoreline processes? ... (Read 33 times)

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
on: Jul 15, 2018
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
Reply #1 on: Jul 15, 2018
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

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
Reply #2 on: Jul 15, 2018
TY


otokexnaru

  • Sr. Member
  • ****
  • Posts: 314
Reply #3 on: Jul 15, 2018
Happy to Help


« previous next »
 

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

This engraving of the Boston Massacre (1770) became the most reprinted depiction of the event, and p This engraving of the Boston Massacre (1770) became the most reprinted depiction of the event, and p
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
Western basin edges are dominated by warm poleward-directed currents (for example, Gulf Stream), ... Western basin edges are dominated by warm poleward-directed currents (for example, Gulf Stream), ...
Hydrolysis reactions for some biochemically important phosphate compounds (part 3) Hydrolysis reactions for some biochemically important phosphate compounds (part 3)
What is the pKa and general acid strength of formic acid if its conjugate base form has a pKb ... What is the pKa and general acid strength of formic acid if its conjugate base form has a pKb ...
Short form of amino acids Short form of amino acids
Video: Eczema

For a complete list of videos, visit our video library