null
US
Sign In
Sign Up for Free
Sign Up
We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our
terms and conditions
for more information.
Next up
Copy and Edit
You need to log in to complete this action!
Register for Free
1941642
Waves and Tides
Description
Waves and Tides :)
No tags specified
geography
as
waves
tides
geography
coasts
a level
Mind Map by
Phoebe Fletcher
, updated more than 1 year ago
More
Less
Created by
Phoebe Fletcher
over 9 years ago
76
6
0
Resource summary
Waves and Tides
Waves
Annotations:
http://www.s-cool.co.uk/a-level/geography/coastal-processes/revise-it/wave-processes
Constructive waves
Annotations:
Also known as Swell or Surging waves
Depsitional
Long wave length
Annotations:
Up to 100m
Low Frequency
Annotations:
6-8 waves per minute
Elliptical orbit
Swash is larger than Backwash
Low Gradient
Caused by distant storms
Create Berms
Destructive waves
Annotations:
Also known as surfing, storm, or plunging
Erosional
Short wave length
Annotations:
smaller than 20m
High Frequency
Annotations:
10-12 waves per minutes
Circular orbit
Larger backwash than Swash
Steep graident
Caused by local winds/storms
Caused by:
The surface of the sea exerting frictional drag on the lowest layer of wind
The distance (fetch) travelled before the wave reaches the shoreline
How long the wind had blown for
How strong the wind is
Wave refraction
Occurs when waves approches a waveline
Which is a irregular coastline
As waves approach a coast they are refracted so that their energy is concentrated around headlands but reduced around bays.
Waves then tend to approach coastline parallel to it, and their energy decreases as water depth decreases.
Tides
Caused by
Controlled by the gravitational pull of the moon (and to a lesser extent the sun)
High Tide
The Moon pulls the water of the earth towards it, creating a bulge (High tide)
The Moon pulls the Earth towards it, creating a bulge of water on the otherside of the earth to the high tide
Spring tide
Twice a month, the Earth, Moon and Sun align
Puts an extra gravitational pull on the earth
Producing an extra high tide
Neap tide
Lowest tidal range
Occur when the Sun and Moon are at right angles to each other
Media attachments
fc1b4e82-27f0-49b5-bc1c-3504140b98a5.gif (image/gif)
3f6b0bd4-ff04-4eac-ac50-1d65c4788e95.gif (image/gif)
2a0b0553-5c1d-4f18-8a03-6c1cf34c5cdb.gif (image/gif)
2edcbfd6-80db-4179-b19d-c04a5e80a8e2.gif (image/gif)
50893c02-a790-448b-b23c-25e8712a26af (image/jpg)
Show full summary
Hide full summary
Want to create your own
Mind Maps
for
free
with GoConqr?
Learn more
.
Similar
Geography Coastal Zones Flashcards
Zakiya Tabassum
Coasts
humaira gafar
Waves
kate.siena
Geography Quiz
PatrickNoonan
Using GoConqr to study geography
Sarah Egan
All the Countries of the World and their Capital Cities
PatrickNoonan
Bowlby's Theory of Attachment
Jessica Phillips
Tectonic Hazards flashcards
katiehumphrey
Volcanoes
1jdjdjd1
River Processes and Landforms
1jdjdjd1
GCSE Geography - Causes of Climate Change
Beth Coiley
Browse Library