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La Nina


La Nina is an abnormal oceanic phenomenon that is one of the Severe Weather Conditions on the surface of the earth. During La Nina, the temperature of the water surface of the oceans becomes abnormally cool. La Nina is generally observed in the Equatorial Pacific Ocean. La Nina is just the opposite of El Nino. In the case of El Nino, the temperature of the water surface of the oceans becomes warmer than the normal temperature instead of becoming cooler.

  • The causes of La Nina:

The causes of this kind of severe natural phenomenon are hidden in the major fluctuations of temperature in the surface of waters of the Equatorial Pacific Ocean. La Nina occurs when the difference between atmospheric pressures in South America and Indonesia increases to a certain level. La Niña usually occurs just after an El Nino has occurred. In fact due to the change of the air pressures, trade winds are produced. These strong trade winds blow the hot water from the surface of the oceans to the Southeast Asia. Then the inner cold water that is there in the depth of the ocean comes upward. The temperature of this water surface is much cooler than the normal temperature of the ocean.








The word “La Nina” has been derived from a Latin word that literally means “the little girl”. The natural phenomenon affects mostly the western regions of the South America. Both La Nina and El Nino oceanic weather conditions affect the human lives greatly.






•  The Horrors of La Nina:

The horrors of the La Nina Southern Oscillation are observed especially on the developing countries like Africa, South America, etc. All these countries are very much dependent on agriculture and fishery. So the after effects of La Nina cause great harm to the economy of these developing countries.
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