Constructive Wave - Gentle waves that create things by depositing material
Destructive Wave - Where strong waves damage something and causes erosion
CONSTRUCTIVE WAVE -->
1. Low wave height
2. Long wave length
3. Powerful
swash-pushes
material up the beach
4. Weak backwash
DESTRUCTIVE WAVE
1. High
wave height
2. Short
wave length
3. Weak
swash -
pushes
material up
the beach
4. Powerful
backwash
EROSION
Hydraulic Action - Sheer force of the water erodes banks etc.
Attrition - Rocks and pebbles collide with each other and get smaller
Corrasion - Material carried by the water erodes the coastline
Corrosion - Chemicals in the water erode the coastline
TRANSPORTATION
Traction - Big rocks roll along the sea bed
Saltation - Material bounces along the sea bed
Suspension - Material floats in the water
Solution - Material dissolved in the water
LONGSHORE DRIFT -->
The waves come in at an angle, however the backwash is always at a 90º
angle due to gravity. Therefore, this process is repeated and material is
carried down the beach in the opposite direction of the prevailing winds