What is a longshore trough?
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Besides, how are longshore bars formed?
The swash carries material both up and along the beach while the backwash only carries material down the beach. Longshore drift is the cause of a spit forming at the mouth of a river. Where a spit grows across a bay, a bar is formed. Where water flows in behind this, a lagoon is formed.
Similarly, how does longshore drift happen? Longshore Drift. Longshore (littoral) drift is the movement of material along the shore by wave action. It happens when waves approach the beach at an angle. The backwash (waves moving back down the beach) carries material back down the beach at right angles.
Besides, what are the types of beaches?
- Sandy Beaches. Sandy beaches are the most common of all beach types in the world, and they are found in virtually all continents on earth.
- Pebble Beaches. Pebbles are found on virtually all beaches on earth.
- Boulder Beaches.
- Shell Beaches.
- Sea Glass.
What happens to the water if two longshore currents approach each other?
This diagonal swash and backwash on the beach creates a longshore current just offshore that moves parallel to the beach and also produces beach drift, which is transport of sand along the beach. When two longshore currents converge, a rip current is formed. Swim parallel to the shore to escape a rip current.