coasts common questions Flashcards
how the management strategies work
Groynes - trap material from LSD to create a wider beach , absorb waves to reduce cliff erosion.
Sea walls - act as barriers for incoming waves , absorbing wave energy reducing eroding and flooding.
Rock armour - breakfast he waves and absorb the energy
How geology effects landscape
Lithology - weak - less resistant to erosion
Structure - Concordant discordant coastlines
Cracks and joints
Changes in coastal landscapes due to human activity are negative
+ reduce erosion, improve biodiversity , increase beach width , sandbanks
- increase erosion , starve beaches and vulnerability to erosion , mangawhai-pakri
Long term vs short term coastal landscape changes
LT- years , formation of spit and climate change , robin hoods bah and formation of shore cut platform .
ST- seconds , collapsed arch , mass movement , flmaborough head
Temporal differences
Smaller and larger scales
Geomorphology processes
Weathering
Mass movements - rock falls
Wave - erosion
