Physical Geography - Coasts

HideShow resource information
What are coastal cells?
Areas of coastline defined by major headlands connected to each other where the physical processes are relatively independent of adjacent cells.
1 of 13
Outline the process of wave refraction.
Waves approaching the coastline lose energy as depth of the water decreases due to increase friction with sea bed. Water at headlands shallow quickly - water is slow, water at bays are unaffected, line of wave takes shape of the coastline.
2 of 13
How are tides created?
Gravitational attraction of moon + sun on the oceans. High tides form as an outer bulge is created on the oceans closest to moon + other side.
3 of 13
What is Spring tide and Neap tide?
Spring Tide = highest tide created when the moon is between the Earth+Sun - HIGHEST TIDAL RANGE. Neap Tide = smallest tidal range.
4 of 13
What are the four processes of sub-aerial weathering.
Frost-Shattering, Salt Crystallisation, Exfoliation, Wetting+Drying.
5 of 13
Describe the four EROSION processes.
Attrition, Corrosion, Abrasion and Hydraulic Action.
6 of 13
Explain the four EROSION processes.
Attrition= angular rocks rubbed/smashed + become smooth and rounded, Corrosion= dissolving of rock, HA= compressing air in rock, Abrasion= thrown against cliff
7 of 13
What affects the rate of EROSION?
Wave steepness, Fetch, Coastal configuration, Beach presence, Sea depth, Human activity.
8 of 13
What are the land-forms of EROSION?
Geos-caves-blow holes-arches-stacks, Wave cut platforms.
9 of 13
What are the processes of Mass Movement?
Soil Creep, Mud Flows, Slumping, Rockfall, landslides,
10 of 13
What are the land-forms of DEPOSITION?
Beaches, Spits+Bars (then lagoons), Sand Dunes, Salt marshes
11 of 13
Define Eustatic change.
A change in the sea level relative to the height of the land (global effect)
12 of 13
Define Isostatic change.
A change in the height of the land mass in relation to the sea (uplift after glaciations).
13 of 13

Other cards in this set

Card 2

Front

Outline the process of wave refraction.

Back

Waves approaching the coastline lose energy as depth of the water decreases due to increase friction with sea bed. Water at headlands shallow quickly - water is slow, water at bays are unaffected, line of wave takes shape of the coastline.

Card 3

Front

How are tides created?

Back

Preview of the front of card 3

Card 4

Front

What is Spring tide and Neap tide?

Back

Preview of the front of card 4

Card 5

Front

What are the four processes of sub-aerial weathering.

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Coastal environments resources »