marine inputs
waves
tides
currents
terrestrial inputs
river sediment
weathering
biological contributions (material from coastal vegetation)
atmospheric inputs
wind
precipitation (affects river discharge + sediment delivery)
temperature
human inputs
coastal engineering (groynes, seawalls, etc)
land use change (e.g urbanisation)
pollution
erosional processes
hydraulic action
abrasion
attrition
solution
depositional processes
sediment transport
longshore drift (transport of sediment along the coast by wave action)
deposition
weathering processes
mechanical (physical breakdown of rocks)
chemical (breakdown via chemical reactions)
biological (breakdown via biological activity e.g. plant roots)
mass movement processes
slumping (downward movement of saturated soils/sediment)
landslides
creep (slow downhill movement of soil)
output: sediment deposition
beaches
spits and bars
dunes
output: erosional landforms
cliffs and wave-cut platforms
caves, arches, stacks and stumps
outputs: transported sediments
offshore bars
deltas
outputs: loss of land
coastal retreat (inland movement of coastline due to erosion + sea level rise)