TNPSC Thervupettagam

La Niña Conditions in 2025

January 16 , 2025 9 hrs 0 min 37 0
  • La Niña conditions have finally surfaced in the Pacific Ocean.
  • Below average sea surface temperatures reflected along the central and eastern Pacific Ocean.
  • La Niña is a phase and known as the El Niño Southern Oscillation (ENSO).
  • This climate phenomenon is characterised by changes in sea temperatures along the central and eastern tropical Pacific Ocean, accompanied with fluctuations in the atmosphere overhead.
  • ENSO influences, alters, and interferes with the global atmospheric circulation, which, in turn, influences the weather worldwide.
  • ENSO has three phases – warm (El Niño), cool (La Niña), and neutral — which occur in irregular cycles of two to seven years.
  • La Niña last occurred in 2020-2023, and El Niño in 2023-24.

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