UK Physical
Landscapes
,
, SWASH - Wave pushing UP the beach as the wave hits the coast
BACKWASH - Waves moving back DOWN the beach with gravity
The energy acquired by waves depends upon 3 HOW ARE WAVES FORMED?
factors: • Normally caused by the wind.
1. The wind velocity - how strong it is. • The exception are tidal waves /
2. How long the wind has blown for. tsunamis which are caused by
3. The length of fetch (distance of open water earthquakes / volcanic eruptions /
over which the wind can blow i.e. how far the landslides / cliff collapses etc…
wave has come)
Wave characteristics
WAVE CHARACTERISTICS
Wavelength -> the distance between 2 wave crest
or troughs.
Frequency -> number of waves breaking per minute.
equilibrium
↓ waterwea
wavelength
highest point
~
!
trough
(lowestpoint
Vertical dist.
between the crest
and trough .
Landscapes
,
, SWASH - Wave pushing UP the beach as the wave hits the coast
BACKWASH - Waves moving back DOWN the beach with gravity
The energy acquired by waves depends upon 3 HOW ARE WAVES FORMED?
factors: • Normally caused by the wind.
1. The wind velocity - how strong it is. • The exception are tidal waves /
2. How long the wind has blown for. tsunamis which are caused by
3. The length of fetch (distance of open water earthquakes / volcanic eruptions /
over which the wind can blow i.e. how far the landslides / cliff collapses etc…
wave has come)
Wave characteristics
WAVE CHARACTERISTICS
Wavelength -> the distance between 2 wave crest
or troughs.
Frequency -> number of waves breaking per minute.
equilibrium
↓ waterwea
wavelength
highest point
~
!
trough
(lowestpoint
Vertical dist.
between the crest
and trough .
