Difference between El Nino and La Nina// ENGLISH NOTE

Difference between El Nino and La Nina// ENGLISH NOTE

 

 

TOPIC	El Nino	La Nina
MEANING	Derived from the Spanish term which represents “little boy”	Derived its name from the Spanish term which represents ‘little girl’.
TEMPERATURE AT SEA SURFACE	It is warmer than normal sea-surface temperatures. It is a warming of the Pacific Ocean between South America and the International Date Line, centred directly on the Equator, and moves towards several degrees of latitude to either side of the equator.	It is cooler than normal sea-surface temperatures. It originated when cooler than usual ocean temperatures occur on the equator between South America and the International Date Line.
PRESSURE	It is laden with high air surface pressure in the western Pacific.	It contain low air surface pressure in the eastern Pacific
TRADE WINDS	It originated when tropical Pacific Ocean trade winds die out and ocean temperatures become unusually warm.	It occurs when the trade winds blow unusually hard and the sea temperature become colder than normal.
CORIOLIS FORCE	It decreases in the strength of the Coriolis force.	It increases in the strength of the Coriolis force.
SEASONS	It has great impact on season pattern because it makes warmer and drier than average in the Northwest of pacific during winters and wetter in Southwest of pacific and experience reduced snowfalls.	Winters are wetter and cause above-average precipitation across the Northwest of pacific and drier and below average precipitation in South west of pacific.
CYCLONES	Wind speed is low.	It had a greater tendency to trigger intense tropical cyclones as wind direction changes pilling up water between Indonesia and nearby areas as winds from Africa onwards gets blocked.
OCEAN WATERS IN PACIFIC	Warm water approaches the coasts of South America which results in reduced upwelling of nutrient-rich deep water impacting impacts on the fish populations.	Cold water causes increased upwelling of deep cold ocean waters numbers of drought occurrence, with more nutrient-filled eastern Pacific waters.
EFFECTS	Heavy rains in Ecuador and Peru; Heavy rains in southern Brazil but drought in north East Brazil; Drought in Zimbabwe, Mozambique, South Africa, Ethiopia; Warm winter in the northern half of the United States and southern Canada. Drought, Scant rains off Asia including India, Indonesia, and Philippines; Coral bleaching worldwide; Drought in eastern Australia	Causes drought in Ecuador and Peru. Created low temperature, high Pressure in Eastern Pacific. Heavy floods in Australia; High Temperature in Western Pacific, Indian Ocean, Off coast Somalia and good rains in India.