It’s the result of different wave systems crossing one another.
Why Do Square Waves Form?
Ocean waves carry energy across the water. Wind is one of the primary forces responsible for generating waves, and a change in wind direction can create a new wave pattern while older swells are still moving through the area.
Imagine waves traveling toward a beach from the west. If conditions change and another group of waves begins traveling from a different direction, the two systems can eventually intersect.
From above, those crossing wave crests can
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