Context:-
As the monsoon hit the Kerala coast, the US National Oceanic and Atmospheric Administration (NOAA) declared that the equatorial Pacific Ocean was firmly in the El Nino phase.
- El Nino and La Nina are complex weather patterns resulting from variations in ocean temperatures in the Equatorial Pacific Region.
What is El-Nino?
El Nino, which in Spanish means little boy, refers to an abnormal warming of the sea surface waters in the equatorial Pacific Ocean that influences weather events globally.
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Effects of El-Nino:
- El Nino also impacts ocean temperatures, the speed and strength of
ocean currents, the health of coastal fisheries, and local weather from Australia to South America and beyond.
- Diseases: El Nino-related flooding is associated with increases in cholera, dengue, and malaria in some parts of the world, while drought can lead to wildfires that create respiratory problems.
- Hurricanes: It can sometimes have a positive impact too, for example, El Nino reduces the instances of hurricanes in the Atlantic.
- Rainfall: As El Nino brings rain to South America, it brings droughts to Indonesia and Australia. Impact on Indian Monsoon.
- Over India, the El Nino results in suppressed rainfall during the monsoon season.
- In India, there have been 18 drought years over 100 years. Of these, 13 years were associated with El Nino.
Do You Know?
The Oceanic Nino Index (ONI) is used to measure deviations from normal sea surface temperatures.
Read also:- What is El Niño
El Nino Returns after seven year,El Nino Returns after seven year
