Defining coastlines Flashcards
Why are coastlines different?
Coasts are a unique creation of waves acting on the land and human management
Littoral zone
the wider coastal zone including adjacent land areas and shallow parts of the sea just offshore
Backshore
above the influence of waves
Foreshore
intertidal/surf zone
submerged between the high and low tide
Nearshore
breaker zone
Offshore
beyond the influence of waves
Where is the breakpoint par zone?
in between nearshore and offshore
What is the max spring tide?
highest tide of the year
usually spring
Weathering
a process
wearing away of material
eg freeze thaw, biological, chemical, onion skin
mass movement
a process
movement of material
eg landslides
erosion
process
wearing away of material
eg attrition
transport
a process
movement of material eg
eg longshore drift
deposition
dropping of sediment
marine
input
waves tides storm surges
atmospheric
input
weather/climate/climate change/solar energy
land
input
rock type
structure
tectonic activity
people
input
human activity/ costal management
erosional landform
output
arch stack stump
depositional landform
output
spit tompolos beaches
different types of coast
output
rocky sandy
coral reefs
input
factors that contribute to the features of a coastline
processes
actions that take place on a coastline
outputs
features of a coastline