TNPSC Thervupettagam

La Nina

November 25 , 2021 895 days 940 0
  • Australia declared that a La Nina weather phenomenon had developed in Pacific Ocean for the second consecutive year.
  • La Nina is an oceanic and atmospheric phenomenon. 
  • During La Nina period, sea surface temperature across eastern equatorial part of central Pacific Ocean becomes lower than normal by 3–5 °C.
  • Phenomenon of La Nina is usually associated with more tropical cyclones, greater rainfall, and cooler than average temperatures in equatorial Pacific Ocean.
  • It is a colder counterpart of El Nino.
  • It is a part of broader El Nino–Southern Oscillation (ENSO) climate pattern.

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