Author Question: Explain how longshore currents form. Explain how rip tide currents form. What will be an ideal ... (Read 77 times)

Engineer

  • Hero Member
  • *****
  • Posts: 527
Explain how longshore currents form. Explain how rip tide currents form.
 
  What will be an ideal response?

Question 2

Name two ways that tsunami waves are different from regular waves.
 
  What will be an ideal response?



Ksh22

  • Sr. Member
  • ****
  • Posts: 297
Answer to Question 1

Answer: Where refracting waves approach the shoreline at an angle, the water is forced to move parallel to the coast and away from where the waves converge onto the shore. Each arriving wave contributes more water into the longshore current, and this water cannot pile up along the shore because gravity is pulling the excess water back out to sea. As a result, part of the current flows offshore as a rip current.

Answer to Question 2

Answer: 1) Although tall storm waves commonly arrive on distant, sunny coastlines, they rarely arrive without warning. Instead, the wave height builds gradually over many hours or days. Tsunami, in contrast, commonly arrive without warning as a series of several waves of incredible magnitude that can be more than ten meters high. 2) Instead of breaking on the beach, a tsunami wave comes onto land as an ever-rising surge of water that floods inland for more than a kilometer on gently sloping shorelines over a period of tens of minutes. The flood wave then quickly withdraws back to the sea only to be followed by the next wave several minutes to an hour later.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

For a complete list of videos, visit our video library