Definitions Flashcards
What is backshore
Area between the high water mark and the landward limit of marine activity
What is foreshore
Area lying between the high water mark and the low water mark
What is inshore
Area between the low water mark and the point where waves cease to have any influence on the land beneath them
What is offshore
Area beyond the point where waves cease to impact upon the sea bed and in which activity is limited to deposition of sediments
What is a flow/transfer
The movement of mass or energy from one store to another
What is an input
Additional of energy or matter into a system
What is a store/component
Part of a system where energy/matter build up
What is a system
A set of interrelated components working together towards some kind of process
What is longshore drift
The movement of material along a coastline by the swash of waves which approach at an angle to the shore
but the backwash recedes directly away from the shore.
Prevailing wides pick up the sediment and repeat the process
Z pattern
What are rip currents
Strong currents that move away from the shoreline
They develop when seawater is piled up along the coastline by incoming waves
Hazardous to swimmers and boats
What is Eustatic change
Sea level change caused by a change in volume of water in the sea, or by a change in the shape of the ocean basin
What is isostatic change
Caused by vertical movements of the land relative to the sea
