La Niña
La Niña means “little girl” in Spanish and is also known as cold event or El viejo. In the eastern Pacific, the water temperature turns lower than usual. As a result, there is high pressure over the eastern equatorial Pacific Ocean. Currently, low pressure systems are occurring in the western Pacific Ocean and off the coast of Asia. The La Nina phenomenon causes droughts in Ecuador, Peru and high temperatures off the Indian Ocean, western Pacific Ocean and Somalia, and a good monsoon in India as well as severe floods in Australia. The La Niña phenomenon is also suitable for the Indian monsoon.
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Highlights
The La Niña phenomenon is a complex meteorological pattern that occurs every few years as a result of fluctuations in seawater temperature in the equatorial Pacific Ocean. When strong winds blow the warm water on the surface of the sea away from the region of South America crossing the Pacific ocean towards the country of Indonesia, this phenomenon occurs. As this warm water moves west near South America, cold water rises from the deep sea to the surface.
The La Niña phenomenon is also associated with unusual rain conditions in northern Brazil and south-eastern Africa. However, the major La Niña phenomenon is associated with catastrophic floods in northern Australia. The La Niña phenomenon is also characterized by extraordinary pressure on the central and eastern Pacific Ocean. This will reduce cloud formation and precipitation in this area. A third condition is observed along the Gulf Coast of the United States, west coast of tropical South America and the southern South America’s Pampa region.
Impact of La Niña
In the Europe region, La Niña phenomenon results in mild winters in Northern Europe (especially the United Kingdom), snow in the Mediterranean region and cold winters in Western and Southern Europe.
Most of these conditions are felt in the North American continent. The broader effects are especially in the Pacific Ocean, strong winds blows along the equator. Preferred conditions for Central and Caribbean Atlantic hurricanes. Major cases of tornadoes in various states of the United States.
The La Nina phenomenon causes droughts in Ecuador and Peru in South America. On the fishing industry located in the western South America, It usually has a positive impact.
In the Western Pacific, the La Niña phenomenon is more likely to land in the most vulnerable areas, especially the Asian continent and China. It also causes serious floods in Australia. Temperatures are high off the western Pacific, Indian Ocean, and off Somalia during La Niña