wave features explanation Flashcards
Why do constructive waves have a powerful swash?
Low energy system that is mostly vertical energy so doesn’t have enough energy to get back.
Why do constructive waves have low wave height?
Low energy environment so less friction and a smaller amplitude.
Why do destructive waves erode coast?
Plunging steep waves in a high energy environment strip coast of sediment.
Why are destructive waves found in stormy conditions?
High wind speeds and friction with sea bed causes orbitals to become more elliptical.
Why do destructive waves have a powerful backwash?
Plunging wave with high vertical energy wave is pulled back down beach.
Why do constructive waves build up the beach?
Low energy environment and low friction means sediment is deposited.
Why do destructive waves have a large wave height?
Orbitals become elliptical due to friction with sea bed.
Why do conservative waves form in calm conditions?
Low energy environment means low wind and surface speeds.
