What is the movement up the beach called?
What is the movement up the beach called? Longshore (littoral) drift is the movement of material along the shore by wave action. It happens when waves approach the beach at an angle. The swash (waves moving up the beach) carries material up and along the beach.
What is the movement of sand parallel to the beach called?
Although the waves hit the beach at an angle, the net motion that they produce (the longshore current) flows parallel to the shoreline. This current moves sand parallel to the shoreline as well (called beach drift or longshore drift).