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Swell Waves in coasts of India
May 9 , 2024
201 days
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- INCOIS forecasted that high sea waves, also known as swell waves, might hit the coastal states.
- In March, swell waves led to flooding in several areas of Kerala — the worst affected were Alappuzha, Kollam, and Thiruvananthapuram districts.
- Such flooding events are called Kallakkadal in Kerala.
- During such storms, huge energy transfer takes place from the air into the water, leading to the formation of very high waves.
- Such waves can travel thousands of kilometres from the storm centre until they strike shore.
- Usually, states like Kerala witness swell waves as a result of strong winds in the southern part of the Indian Ocean, where an ocean swell is generated.
- The waves then travel north to reach the coast in two or three days.
- Tsunamis are around 10 times faster than swell waves.
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