TNPSC Thervupettagam

Indian Ocean Basin-Wide Index

May 18 , 2024 25 days 131 0
  • It represents the average sea-surface temperature variations across the tropical Indian Ocean.
  • It has emerged as a key indicator for predicting the magnitude and timing of dengue epidemics in each country.
  • Its association with the Southern Hemisphere is stronger than that with the Northern Hemisphere.
  • It has a more pronounced impact on temperatures in tropical regions.
  • The link between the Indian Ocean’s temperature and dengue incidence is likely due to its influence on regional temperatures through teleconnections, large-scale atmospheric patterns that can transfer heat and moisture across vast distances.

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