Chichester Harbour - Low energy coastline Flashcards
describe the location of chichester harbour
the south coast of england in west sussex and hampshire
how was chichester harbour first created
when an ancient river systems was inundated by the post glacial rise in sea level
is chichester harbour a closed or open system
largely open
why is the harbour a low energy environment
the harbour has a narrow entrance so waves don’t penetrate far into the basin
describe wind imputs at the harbour
the coast is protected from prevailing winds coming from a southern direction, but in the winter these winds do create high energy waves
describe why local waves have limited energy/power
because they have a restricted fetch
where does the harbour receive its sediment from
fluvial sediment from the floor of the river Solent
offshore sentiment through longshore drift
how much of chichester harbour is protected through hard engineering
90%
name 6 processes that occur at the harbour
erosion
transport
deposition
sedimentation
weathering
mass movement
describe outputs at chichester harbour
ebb tides remove silt and clay that enters the system, they are deposited at offshore sand banks
describe 3 stores at chichester harbour
mudflats and salt marshes
gravel and sand beaches on the west facing shorelines
intertidal sand banks
spits of shingle and sand like east head spit
what is the eastern entrance to chichester harbour flanked by
East Head spit
how long is east head spit
around 1km
what is found behind the spit
salt marshes and mudflats
what occurred to the spit before 1870
it grew westwards supplied by eroded shingle and sand from cliffs
