El Nino - La Nina
phenomenon is the interaction between the natural circulation of air currents on the ocean currents, El Nino caused by easterly trade winds are weak. Surface wind direction change Blowing from Indonesia and northern Australia to the East. Then lifted off the northern coast of South America. Wind is blowing warm currents on the surface of the Pacific Ocean piled coastal Peru. Cold water makes the ocean could rise, including coastal areas, therefore lack of nutrients for fish and seabirds make Peruvian fishermen lose income. While El Niño caused heavy rains in the northern part of South America, but it causes drought in Southeast Asia and northern Australia. Severe forest fire in Indonesia in some years La Niña. The opposite phenomenon El Nino. Is similar to normal, but stronger than, the wind is easterly trade (Trade wind) blowing to the east, high pressure sea level in the western Pacific than normal, making the northern Indonesian rain. fall heavily But the cold ocean waters off the coast of Peru, raised up on warm currents in the Pacific Ocean east coast, causing nutrients and fish habitat , we may say that simple. El Niño caused heavy rains in the northern part of South America and drought in Southeast Asia. In turn, the La Nina causes drought in the northern part of South America and heavy rainfall in Southeast Asia. Both El Niño and La Niña, caused by the reversal of the flow of air over the equatorial Pacific Ocean.