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15 Φεβ 2021 · A longshore current is a current that flows parallel to the shore within the zone of breaking waves. Longshore currents develop when waves approach a beach at an angle (Figure 12.37). Longshore currents cause sediment transport called longshore drift.
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Definition. Longshore currents are shallow water currents that flow parallel to the shoreline, generated by waves breaking at an angle to the coast. These currents play a significant role in coastal dynamics, transporting sand and sediment along the beach, which affects shoreline erosion and deposition patterns.
Longshore currents are water currents that move parallel to the shoreline, generated by waves breaking at an angle to the coast. These currents play a crucial role in the transportation of sand and sediment along the beach, influencing coastal erosion and deposition patterns.
The combined effects of sediment transport within the surf zone by the longshore current and sediment movement along the beach by swash and backwash is known as longshore transport, or littoral drift.
Longshore drift from longshore current is a geological process that consists of the transportation of sediments (clay, silt, pebbles, sand, shingle, shells) along a coast parallel to the shoreline, which is dependent on the angle of incoming wave direction.
Longshore drift: the movement of pebbles along a beach by oblique waves. Longshore drift has a sorting effect on the horizontal distribution of beach materials. Where cliffs are exposed to strong wave action, the shore is usually strewn with boulders too large to be moved by the waves.
