Scarp

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Scarp (English)
急崖 (日本語)
Head scarp of a small landslide at Redondo Beach, CA

Vertical drop-off of the dry beach caused by oblique wave attack during stormy conditions; beach scarps can be several inches to over six feet high and disappear by the return of sand onshore during berm accretions. Dunes can also be scarped, forming vertical, wave-cut faces.