Question

Define the process called beach equilibrium of sand being moved by the swash and backwash (don't worry here about differences in grain size; that will be considered in part b. - just define BEACH EQUILIBRIUM SLOPE).

Answer 1

Beach equilibrium is a dynamic balance on the shore between the sand moved up by swash and that moved back to the sea by backwash, maintaining a stable beach slope.

Step-by-step explanation:

Beach equilibrium refers to the dynamic balance of sediment movement on the shore, where the amount of sand carried up by the swash (the forward movement of water from incoming waves) is equal to the amount of sand moved back into the sea by backwash (the water that flows back after the swash). This balance is essential for maintaining a stable beach slope, which is the angle or gradient between the water and the beach surface. Beach equilibrium can be disrupted by factors such as storm events, shifting environmental conditions, or human activities, leading to either erosion or accumulation of sand.