coasts L8 depositional landforms Flashcards
SPIT
process and example
longshore drift
constructive waves
require gap in coastline
spurn head
BAYHEAD BEACH
process and example
swash aligned feature - waves break at 90* to the shoreline
moves sediment into bay beach forms
erosion concentrated at headlands
lulworth cove, dorset
TOMBOLO
process and example
longshore drift carries sediment across a gap between the mainland and an island
forms a narrow low ridge of sand & pebbles
st ninians tombolo, shetland
BAR
process and examples
sand or shingle beach that connects two areas of land (extended spit)
forms a lagoon behind it
chesil beach, dorset
haff coastline, poland
HOOKED/RECURVED SPIT
process and example
spit curved landward naturally into shallower water.
hook may be made more pronounced by waves from a secondary direction to prevailing wind
hurst castle spit, hampshire
CUSPATE FORLAND
process and example
roughly triangular shaped features extending out from a shoreline
might be formed by growth of two spits from opposing longshore drift directions
Dungeness, kent
DUNGENESS NUCLEAR POWER PLANT
- built in 1965
- presumed to be built on a sturdy part of the coastline
- in 1990s (COP1) discovered to have been built on a cuspate foreland
was built close to coast to cool the reactor down
and the english channel had a short fetch so doesnt erode
UK WINTER STORMS
- number of days temps fall below 0*C to become less frequent
- number of days of high impact heavy rainfall could rise by 3 days per year
- sea level around the UK has risen by 18.5cm since the 1900s
-2022 one of the least snowy years compared to the last 60 years
