L1- what is a coastal landscape? Flashcards
what is the literal zone?
it is the boundary between the land and sea, it is a dynamic zone due to it constantly changing
what are the uks x3 types of coastline?
Rocky cliff- lands end, cornwall
sandy beach- skegness, linconshire
Estuarine coastline- Southend salt marshes, essex
what are the characteristics of a rocky cliff coastline?
-high relief
-resistant geology
-destructive waves
-destructive waves
-high energy
-located southwest of uk
what are the characteristics of a sandy beach coastline?
-located in the east + south of the uk
-less resistant geology
-deposition of material more common than erosion
-constructive waves
-low energy
what are the characteristics of a estuarine coastline?
-located in river mouths
-more deposition than erosion
-low energy
-river mouth sheltered headlands
what are the short term factors impacting the literal zone?
-waves’ height, frequency and power
-tides
-storms’ frequency
-human interactions such as buildings, sediment extraction
what are the long term factors impacting the literal zone?
-climate change changing the storm season [length]
-sea level change
what seasons have the highest and lowest tides?
spring = highest tide
winter = lowest tide
how much as the sea level inc since 1860?
130cm
what is dynamic equilibrium?
a perfectly balanced natural system
all systems have inputs, processes, outputs- what happens if you change one component
it impacts another components directly due to the change in equilibrium
what is the classification of coastlines?
its where coastlines is catigorised due to its characteristics with similar coastlines, however this can be complex due to some environments not fitting into the sections.
what are the characteristics a coastline can be classed by?
geology
wave energy level
dominance of erosion or deposition
sea level changes
what is the definition of fetch?
the distance waves have traveled over the sea by the wind
what are the characteristics of a high energy coastline?
waves-destructive waves, calmer conditions, long fetch
processes- erosion and transports
landforms- cliffs, wave-cut platforms, arches
general location- highland and lowland coasts, rocky landscapes
what are the characteristics of a low energy coastline?
waves- constructive
processes- depostion
landforms- depositional landforms
general location- lowland coasts
what is the valetin classificaton of coast 1952 used for
used to measure is a coast is growing or retreating
