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How does the weather changes in both the eastern and western pacific during el nino year?
Wiki User
∙ 6y ago
El Niño is a weather phenomena which tends to occur in tropical waters of the Pacific Ocean. It affects the region across the Pacific from New Guinea to South America, known as the Equatorial Pacific. During an El Niño season, which occurs on average every 2-7 years, a shift in ocean currents and winds brings warm water in a westerly direction, displacing the usual cold water that comes up from the ocean depths. As well as affecting marine life, the El Niño has an effect on weather patterns.
Under normal conditions, in the tropics warm oceans tend to be accompanied by heavy rains, resulting in heavy rains in the warm west Pacific while the cooler east Pacific receives far less rainfall. This is reversed during an El Niño, when the ocean temperature gradient from one side of the Pacific to the other weakens. Warmer than usual ocean temperatures cause droughts in the west, while the unusually warm eastern waters bring heavy rains and floods to the Pacific coast of South America, which is usually much drier.
It's all a matter of interactions between the oceans and the atmosphere. Changes in sea surface temperatures causes a shift in air pressure which, in turn, can result in climatic anomalies, such as severe droughts, flooding and even cyclones. One of the effects is that the normal circulation patterns over the Pacific are disrupted, and moisture-bearing trade winds weaken, whilst drier westerlies increase.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agothe changes that occur in the pacific ocean and atmosphere during El Nino are heavy rains or droughts.
Wiki User
∙ 12y agoel nino is mostly that the changes that happen are the air pressure changes cause the winds to blow from east to west.
Wiki User
∙ 13y agotropical thunderstorms are fueled by hot humid air over the ocean's. The hotter the air the stronger and bigger the thunderstorm.
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Which region has warmer weather eastern or western Europe?
Western
Is ny eastern or pacific time?
NY is on Eastern time. Pacific time is in the Western part of the US (on the left side of a map).
What are Canada's time zones?
eastern, western, central, pacific, Atlantic and Newfoundland
What are the trade winds of EL Nino?
When El Nino occurs the trade winds tend to weaken. Also water from the western Pacific moves to the Eastern Pacific.
What kind of weather conditions would you expect to find in Australia during La Niña?
The water in the western Pacific is typically warmer than in the eastern Pacific because trade winds blow the warm waters of the eastern Pacific westward and keep it there. Also, upwelling in the eastern Pacific keeps the water cooler.The warmer water creates more clouds and rain, keeping Indonesia and other areas of the western Pacific wetter than Peru and other coastal regions of South America.During El Niño, the pressure gradient (rate of pressure change between areas of high and low pressure) weakens. In the western tropical Pacific, there is unusually high air pressure, while there is unusually low air pressure in the eastern tropical Pacific. This Southern Oscillation causes the trade winds to weaken, and even blow backwards. This pattern reversal leads to unusually wet weather in parts of South America, and unusually dry weather in the western Pacific.El Nino usually occurs every 3 to 7 years, and lasts for about 18 months.La Niña is the opposite of El Niño. These two weather patterns oscillate every few years.During La Niña, there is unusually low air pressure over the western tropical Pacific, and unusually high air pressure in the eastern tropical Pacific. The easterly blowing trade winds strengthen, blowing more warm water away from the equatorial Pacific. As a result, Australia and Indonesia become wetter than normal, and parts of South America become drier than normal.
How is weather on the western coast of Africa effect the weather on the eastern coast of north America?
the ecosystem changes so does the environment
Which region has warmer weather eastern or western Europe?
Western
How does rainfall in the eastern pacific compare to the rainfall in the western pacific?
Well, the rainfall in the eastern part don't get alot because my grandma said so. Eastern pacific is way more western is way less, there ya go
What changes occur in the pacific ocean during El Nino?
Effect of El Nino include droughts in the western Pacific areas of Australia and Indonesia and increased rain and flooding in the eastern Pacific including Peru and California.
Which ocean is located in the northern eastern and western hemi?
Pacific
What is the nearest oceans?
It depends on where you live. Western USA: Pacific Ocean Eastern USA: Atlantic Ocean
Is ny eastern or pacific time?
NY is on Eastern time. Pacific time is in the Western part of the US (on the left side of a map).
In what ocean do you find the Polynesian Isands?
It is in the central,eastern and western pacific ocean.
What are Canada's time zones?
eastern, western, central, pacific, Atlantic and Newfoundland
ARE THE ROCKY MOUNTAINS IN THE EASTERN OR WESTERN PART OF THE UNITED STATES?
Pacific plate
What oceans surrounds the western half of Australia?
The Indian ocean surrounds the western half of Australia, whereas the eastern side is surrounded by the Pacific Ocean.
What body of water forms the western coast of the US?
The Pacific Ocean. It stretches to Eastern Asia.
