ECONOMICS (CBSE/UGC NET)

Detailed explanation-1: -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.

Detailed explanation-2: -Coastal transportation Longshore drift is when waves move in the direction of the prevailing wind at an angle to the beach. The swash, which carries the material, follows this same angle, but the backwash moves material vertically down the beach.

Detailed explanation-3: -Sediment is carried by the waves along the coastline. The movement of the material is known as longshore drift . Waves approach the coast at an angle because of the direction of prevailing wind. The swash will carry the material towards the beach at an angle.

Detailed explanation-4: -As discussed earlier, longshore drift occurs when waves approach the shore at an angle. At Point Lookout Beach, waves are approaching the shoreline in a north-west direction. This results in sand being transported north, along the beach, in a zig-zag motion.

Detailed explanation-5: -Longshore currents mobilize sediments in what is known as longshore sediment transport (longshore drift). Water serves as a media to transport sediment, while the wind provides energy for transport.