Waves Flashcards
What is a constructive wave?
A wave that has low energy and a strong swash and weak back wash
How will a constructive wave felt the profile of a beach?
It will deposit sediment of the beach making it steeper
What is a destructive wave?
Hight energy wave with a weak swash and strong back wash
How do destructive waves effect a beach profile?
They make the beach less steep
What is the wave frequency constructive waves?
6-8 per minute
What is the wave frequency of a destructive wave?
10-12 per minute
What is the wavelength and form of a constructive wave?
Low surging, Long wavelength (up to 100m)
What is the wavelength of a destructive wave and it’s form
Hight plunging waves Short wavelength (less than 20m)
How are constructive waves formed?
Distant weather systems generate them in open ocean
How are destructive waves formed
Local storms
What is the wave period of a CW
Every 8-10 seconds (distance between two crests)
Period of DW
1 every 5-6 seconds