Geosphere- Coastal Geomorphology Flashcards
What is the water depth at the edge of the continental shelf
100-200m
What is stratigraphy
A pile of sediment that has been accumulated over a certain time period
How does sediment move in estuarine coasts
There is less sediment and more energy to move sediment. Higher transport capacity than sediment input
Is there more deposition or erosion in deltaic coasts
Deposition (more sediment input)
What is deep water wave height determined by
Wind speed and duration
2 types of tides
Spring and neap
Microtidal height
<2m
Mesotidal height
2-4m
Macrotidal height
> 4m
What type of energy systems are erosional coasts
High energy systems with low sediment outputs
Example of erosional landforms
Cliffs
Wave cut platforms
Arch
How many people living in coastal areas will be at risk from flooding in the future
Half a billion
Example of depositional features
Barrier islands
Estuaries
Salt marshes
Mud flats