Waves approach the beach at an angle similar to that of the wind., Swash carries sediment up the beach, following the angle of the waves., Backwash takes material straight back down the beach under gravity., The sediment is again moved up the beach at an angle by the swash., Backwash again returns the material straight back down the beach., Sediment is gradually moved along the coastline..

Longshore drift

بواسطة

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟