Sediment Sources, Cells and Budgets (AQA A-Level Geography): Flashcards
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Role of sediment in coastal systems
Role of sediment in coastal systems
Key input alongside energy
5 sources of coastal sediment
5 sources of coastal sediment
Rivers, estuaries, cliffs, offshore banks, biological sources
Definition of sediment cells
Definition of sediment cells
Distinct coastline stretches separated by defined boundaries
Number of major sediment cells in England and Wales
Number of major sediment cells in England and Wales
11
Coastal sediment budget meaning
Coastal sediment budget meaning
Balance between sediment added to & removed from coastal system
Outcome of positive sediment budget
Outcome of positive sediment budget
Net accretion; shoreline builds seaward (progradation)
Outcome of negative sediment budget
Outcome of negative sediment budget
Sediment deficit; shoreline retreats landward
Marine processes definition
Marine processes definition
Processes connected with sea: waves, tides, longshore drift
Sub-aerial processes definition
Sub-aerial processes definition
Processes that break down coastline in situ (weathering, mass mvt)
Role of estuaries in sediment systems
Role of estuaries in sediment systems
Temporary storage areas where river sediment accumulates