OBJECTIVES
- Learn about the effects of beach constructions and structures.
- Observe wave behavior during a normal day (without a storm) and during a storm day.
- Demonstrate the erosion effect due to beach structures during a storm.
VOCABULARY
- Waves → continuous succession or disturbances in the surface of the water
- Erosion → removal of sediment
- Accretion → addition or accumulation of sediment
- Sediment transport → movement of sediment from one place to another
- Swell → the alterations in sea level due to the movement of planet Earth.
- Coast → the area that covers the land before the beach to the part of the ocean beyond where waves usually break.
DEMONSTRATION
Demonstrative video on topics regarding coastal processes.
Includes simulations of a beach with and without coastal structures during a normal day (without storm) and during a storm.
These will help demonstrate the consequences of coastal constructions.
Includes simulations of a beach with and without coastal structures during a normal day (without storm) and during a storm.
These will help demonstrate the consequences of coastal constructions.
KEY POINTS
- The loss of sediment is called erosion. When the beach receives sediment, it is called accretion.
- Erosion and accretion generally depend on atmospheric conditions and annual seasons.
- During non-storm conditions, waves do not drastically change the amount of sediment on the beach.
- During storm conditions, the water levels increase, and the wave force is considerably higher.
- Extreme erosion conditions cause the sediment that holds a structure to slowly erode, until the structures fail due to support in their foundation.
Q&A: Coastal Constructions
LATEST REVISION: FEBRUARY 2024
