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El Nino and La Nina

El Nino and La Nina are opposite phases of ENSO (El Nino Southern Oscillation), a coupled ocean-atmosphere oscillation in the Tropical Pacific Ocean that exerts an influence on weather throughout much of the world. Being an oscillation, it moves between these two phases every few years, triggered initially by changes in the atmospheric circulation with ocean temperature changes following. It is measured by the Southern Oscillation Index, which compares surface pressures at Tahiti and Darwin, Australia.

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Does el nino affect coral reefs?

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Asked by Wiki User

Well, El Niño being a 27 mile ocean current located off the west coast of South America, not much. What you may mean is the ENSO (El Niño Southern Oscilation) events that periodically occur along the equator between Australia and South America, from which the current takes its name.

ENSO events push warmer nutrient depleted ocean waters into the coast of South and Central America, causing fish and other marine life in the area to die out. The rate of depletion of biology in the areas affected depends entirely on the strength of the ENSO for that year or period.

What were past el nino years?

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El Nino technically has occurred every few years, but the most prominent years were 1982-1983 and 1997-1998.

When does el nino occcur?

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The last El Nino occured in late 2009/ early 2010.

How does El Nino event affect ud here in Florida?

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Asked by Wiki User

El Nino brings wetter-than-normal conditions to Florida during the winter months, especially late winter. Temperatures tend to be slightly warmer in early winter, and on the cool side in late winter and early spring.

When did la Nina and el nino occur at same time?

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Asked by Wiki User

It is impossible for them to occur at the same time. They are two opposite phases of the same oscillation. It is either one or the other, or it is somewhere in between (neutral).

What are the benefits of el nino?

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Asked by Wiki User

El Nino refers to the warm current that flows southward along the coasts of Ecuador and Peru between January and March, marking the end of the local fishing season. This results in a shift in ocean temperatures and atmospheric conditions in the tropical Pacific, which disrupts weather around the world.

El Nino climatic conditions occur every few years, and they are not predictable. Usually

though not always El Nino brings more rain and higher temperatures. Also, warm ocean currents come farther north and all kinds of tropical fish can be caught in the waters far north of where they can usually be found. The climate pattern is important, because it can change the weather of the United States particularly in California and southern states. It has also been noticed that severe droughts in India occur when there is El Nino.

The relationship between ocean circulation and atmospheric?

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Global wind patterns and ocean currents determine the climate and weather of the world. Convection, which is the transfer of heat between liquids and gases, occurs between the ocean water and the air, giving the air varying degrees of temperature.

What do you do during an 'El Niño'?

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Evacuate or Stay in a safe, dry place may be choice actions during an 'El Niño' extreme event. The phrase refers to an unusual warming of temperatures in the eastern tropical Pacific Ocean. The event may be accompanied by greater rainfall. So there may be flooding and thunderstorms.

It's important to travel as little as possible. If travel is allowed and necessary, voyagers need to have access to informational radio broadcasts. They need to have dependable forms of communication, such as working cell phones. They need to have updated maps, and medical and survival supplies in the vehicle.

The same holds true in terms of the particular form of shelter, be it one's own home or elsewhere. It's best to keep current on weather advisories. It's important to make sure that family and friends know one's location. And it's important to stay dry, safe and warm.

What causes an EL NINO?

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Enso results from dynamic and thermodynamic interactions. These interactions happen in the atmosphere, oceans, and land surfaces, although specificallywhat causes ENSO is unclear. Aside from that, scientists believe air pressure changes and wind currents play a vital role in starting El Nino/ Southern Oscillation. Some researcher think greenhouse gases may play a role. Others say underwater activity; underwater earthquakes for example, cause El Nino.

What is unusual pattern occurs during el nino?

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Asked by Wiki User

The pressure gradient decreases. The trade winds weaken, or even blow backwards.

What does a weak El nino cause?

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people in very dry areas got flooded and people in very wet areas went dry.

What is the ocean of origin for 'El Niño'?

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Spanish is where the phrase 'El Niño' comes in terms of language. The masculine definite article 'el' means 'the'. The masculine noun 'niño' means 'boy child'. Together, they're pronounced 'ehl NEE-nyoh'.

A modern use is in reference to the acting out of disruptive weather patterns along coastal South America. The disruptions are caused by unusual warming of the waters of the eastern tropical Pacific Ocean, and by unusual rising of surface air pressures over the western tropical Pacific Ocean.

The ocean's warming takes place in December. Coastal Peruvians particularly notice the changes during the Christmas season. It's for that reason that the event carries the nickname of 'El Niño'.

El Nino means boy child in Spanish. It also refers to the Baby Jesus.

Since the weather pattern El Nino often occurs around Christmas time, people started to call it by that name.

What is La Nina and how does it occur?

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Asked by Wiki User

La Nina is the cool phase of ENSO (El Nino Southern Oscillation), with the warm phase being El Nino. It features a cooling of the waters in the Tropical Pacific. In the atmosphere, the trade winds are strengthened and there is even stronger upwelling off the coast of South America, which allows cooler water to move further to the west.
As with El Nino, it occurs at irregular intervals every 2-7 years and can last from about 6 to 18 months. Its effects globally vary from one location to the next, and are often quite different from thoes of El Nino.

it means little girl

How often does La Nina occur?

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The opposite of an El Nino, La Nina is formed by cooler-than-normal subsurface waters in the central and eastern tropical Pacific. On average, it occurs every 3-6 years, but atmospheric changes, effects of industrialised nations and many other factors are gradually changing the frequency and length of La Nina.

What weather conditions can be expected in eastern Australia during the El Nino phenomeno?

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El Nino brings drought conditions to eastern Australia. These effects often last for several years, and they are by no means restricted to the eastern states. Lack of rainfall accompanying an El Nino can also affect the west coast, bordering the Indian Ocean.

Australia's severe bushfire seasons are often preceded by the El Nino phenomena, extending for any number of years. This was the case in the 1982-83 season, leading to the horrific Ash Wednesday bushfires, and again in 2008-09, leading to the even worse Victorian "Black Saturday" bushfires.

Why Do People Get Upset?

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the reason why people get upset is because other people be making them mad or someone getting on their last nerves or they just say things to make you mad.but listen for some good advice,don`t let people make you mad with words they say because words and talk don`t hurt anyone.because the reason they want to make you mad is so you can hit them first and get you into trouble.

What is the solution for el nino phenomenon?

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Asked by Azzia

There is no solution because there is no problem. It is a completely natural cycle (it may or may not be enhanced by global warming) that we wouldn't be able to alter if we wanted to because its scale is far too large. To minimize damage, we can only prepare for its consequences and strive to detect and predict it more accurately.

Cause and effect of La Nina?

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Asked by Wiki User

the cause is the heat forming in the center of the ocean . the effect is simply la nina

How El nino affect ocean temperature near Peru?

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the storm causes masive flooding

What are the effects of el niño on human systems?

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The El Nino phenomenon impacts the Earth's ecosystems through climate changes around the world. In some areas, food is plentiful, while in other areas, severe drought occurs limiting the food supply.

Is 2011-2012 a la Nina?

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According to the Scripps Institute, La Nina conditions (ie eastern pacific cooling) are likely to persist until the middle of this year. El Nino is forecast to become the prevailing phase in the end of the year and the beginning of next (2010) See http://meteora.ucsd.edu/~pierce/elnino/pictures.html The Australian Bureau of Meteorology seems to concur. They publish several different researchers computer modelling, and La Nina will remain for another few months, it may then be neutral or starting an El Nino later in the year, See http://www.bom.gov.au/climate/ahead/ENSO-summary.shtml So to answer your question, 2009 is not an El Nino year as such, but it may see the start of one, leading on to 2010, which presumably will be an El Nino year. Dr J K Monro, Wellington.

What effect does el nino have on the eastern coast?

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In 2009-2010 anyone on the eastern coast noticed a large increase in nor' easters. That's because this winter season was an El Nino. When an el nino occurs, the jet stream is shifted from its regular position in the Atlantic. It is shifted closer to the United States' east coast. This makes all of the low pressure systems follow right over it. Over time, in an El Nino year, there is an increased activity in low pressure systems up the east coast which creates more snow, rain, etc. (Nor' Easters)