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geo
paper 1
coast
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Created by
umaima adenwala
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Cards (30)
what is our example of a cave, arch, stack + stump
selwicks bay
what is our example of a headland
flamborough
head
what is our example of a bay
Bridlington
bay
what is our example of a
spit
spurn
head
hard
engineering management stratergies
gyrones
sea wall
rock
armour
gabions
sea wall advantages - hard engineering coast management
effective against
erosion
long
lasting
provides a
walk
way
for ppl
sea wall disadvantages -
hard
engineering coast management
expensive
- £5000
unnatural
to look at
restricts
acess
sea wall
a
curved
concrete wall that reflects
waves
rock armour advantages -
hard
engineering coast management
effective against
erosion
can be used alongside a
sea wall
more
natural
looking
rock armour disadvantages -
hard
engineering coast management
expensive
can
restrict
access
rock armour
large rocks at the base of the cliff
gabions - advantages - hard engineering coast management
effective against
erosion
can be used alongside
sea walls
more
natural
then sea walls
gabions disadvantages - hard engineering coast management
expensive
-
maintenance
dangerous
to
wildlife
gabions
rocks
in wire
mesh
cages
groynes
- advantages - hard engineering coast management
prevent
longshore drift
which can cause
erosion
cheaper
long lasting
groynes - disadvantages hard engineering coast management
cause
erosion
elsewhere
maintenance
ugly
groynes
wooden barriers
built at right angles
beach
nourishment advantages -
soft engineering
coast management
cheap
reduce erosion
natural
beach reprofiling advantages -
soft engineering
coast management
reduces
erosion
by reducing
wave energy
cheap
simple
sand
dune regeneration advantages - soft engineering coast management
creates a barrier from erosion
dunes absorb the waves energy
natural
managed retreat - advantages -
soft
engineering coast management
natural
salt marshes
- good for wildlife
beach
nourishment disadvantages - soft engineering coast management
constant maintenance
restrict access while work is done
taking sand from elsewhere
beach
reprofiling disadvantages - soft engineering coast management
constant
maintenance
restricts
access while work is done
only useful where
wave
energy is
low
sand
dune regeneration disadvantages -
soft
engineering coast management
the vegetation takes ages to
grow
manged
retreat disadvantages -
soft
engineering coast management
ppls
land
+
job
lost
ppl may need to be
compensated
for the land lost
beach nourishment
adding more
sand
to the beach
beach reprofiling
making the beach
steeper
towards the
land
sand
dune regeneration
building up sand dunes + vegetation
managed
retreat
allowing
nature
to take its course
Holderness coast - reasons for management
↑ fetch= powerful waves = ↑
erosion
coastline made of boulder clay, soft rock ↑
erosion
saturated soil bc of ↑
rainfall
+ heavy buildings on the coastline →
slumping