TNPSC Thervupettagam

Rapid Warming of Indian Ocean

May 3 , 2024 47 days 227 0
  • From 1950-2020, the Indian Ocean had become warmer by 1.2°C and climate models expect it to heat up a further 1.7°C–3.8°C from 2020–2100.
  • The “marine heatwaves” in the sea are linked to the rapid formation of cyclones.
  • They are expected to increase tenfold from the current average of 20 days per year to 220–250 days per year.
  • The heat content of the Indian Ocean is measured from the surface to a depth of 2,000 meters.
  • It is currently increasing at the rate of 4.5 zetta-joules per decade.
  • Further it is predicted to increase at a rate of 16–22 zetta-joules per decade in the future.
  • Joule is a unit of energy and one zetta-joule is equal to one billion-trillion joules (1021).

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