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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.
500 Questions
Which of the phenomena is supposedly associated with globol warming?
Asked by Wiki User
One of the phenomena supposedly associated with global warming is the rise in average global temperatures. As greenhouse gases such as carbon dioxide accumulate in the atmosphere, they trap heat and lead to an increase in the Earth's overall temperature. This can result in various consequences, such as melting ice caps, rising sea levels, and more frequent and severe heatwaves.
What is effect of la Nina?
Asked by Wiki User
Ocean temperatures off the west coast of South America decrease.
What is El Nino and how does it affect South America?
Asked by Wiki User
La Nina brings drought to the continent. El Nino on the other hand brings floods, rain, rising rivers and misery.
Why is the climate along the Peruvian coast of South America very dry during normal non-Nino times?
Asked by Wiki User
Most of the moisture flows from east to west in central South America. This moisture is blocked by the Andes Mountains and does not reach the western parts of the continent, forming rain shadow deserts in Peru and Chile.
How does El Nino affect South America?
Asked by Wiki User
In South America, the effects of El Niño are direct and stronger than in North America. An El Niño is associated with warm and very wet summers (December-February) along the coasts of northern Peru and Ecuador, causing major flooding whenever the event is strong or extreme. The effects during the months of February, March and April may become critical. Southern Brazil and northern Argentina also experience wetter than normal conditions but mainly during the spring and early summer. Central Chile receives a mild winter with large rainfall, and the Peruvian-Bolivian Altiplano is sometimes exposed to unusual winter snowfall events. Drier and hotter weather occurs in parts of the Amazon River Basin, Colombia and Central America.
What are the economic impacts of el nino?
Asked by Wiki User
There are negative economic impacts of el nino. Property, livestock and crops are damaged. Most of the production work is also halted due to the heavy floods which will stagnate the economy.
Weak dollar is normally expected to cause?
Asked by Wiki User
Since a weak dollar would mean that people in other countries will be able to purchase more US products for the same price, their demand would create a need for more products.
This demand would cause manufacturers to hire more employees and thus lower unemployment.
clarson73 contributes:
First, let's understand the U.S. dollar has been the so-called "world currency" since 1944. These days, more nations peg their currency against the dollar than not. These nations do not want to see the dollar weaken because, in short, it tends to hurt their economy when the dollar has less value than what they put into it. On the other hand, the U.S. tends to benefit from a weak dollar, in short term, because: 1.) It makes our debt to foreign investors (namely China and Japan) smaller... the debt is in U.S. dollars, so, a dollar that is lower-priced is cheaper to pay back-- but, the downside is they will tend to raise interest rates on future loans to us though. 2.) U.S. exports (look at what Ford Motor Co. is getting ready to do, along with many other U.S. manufacturers) are cheaper to manufacture, thus making exports more competitively priced and hopefully closing the gap, even slightly, on our trade deficit. 3.) Foreign tourists (mainly those from Europe, Canada, Australia...), students, etc. will find this a perfect time to come to the U.S. and spend their money because their money simply goes farther now... which is good for American retailers and universities alike. The bad part is it's more expensive for us to travel and buy merchandise, hotels, etc. there. 4.) Imports most likely will not be priced higher (for now) because foreign manufacturers will be reluctant to raise prices for the simple reason they rely on income from the massive U.S. market share on imported products and do not want to threaten their own economy by importing less products. (U.S.-made products become less expensive to make and thus more competitive as well. The Chinese currency is the yuan and is paralleled in worth almost exactly with the dollar which is why their products have been so competitively priced for so long. Think Wal-Mart.) 5.) Oil prices do rise when the dollar weakens. Oil is traded in U.S. dollars and oil-rich nations try to compensate for the loss in revenue by raising prices, BUT... the upside to this is that developing and using alternative fuel sources will drastically reduce our dependence on fossil fuels (and foreign oil of course) and ultimately enrich our environment for future generations. 6.) Gold prices also go up when the dollar goes down as long as demand for gold (as an alternative investment) increases (as with many commodities). Buy futures in gold right now. Sell when the dollar starts to go back up. This is an afterthought and I'm sure you've seen the commercials, but people tend to invest in commodities when the dollar weakens, thus increasing demand and driving up prices-- therefore making futures more lucrative (for now). Just remember to set a stop-loss point and sell when it begins to go the other way. When the dollar is weak you can hedge on futures contracts because many things tend to be on the upward swing, but remember that with that comes higher inflation, higher interest rates, etc. These are trends that don't tend to last for very long so take advantage of every opportunity you can before the dollar makes a comeback and hopefully evens out before too long. I'm no financial advisor as many of you can probably tell, but I do like the question and this is the best I can do with it. Thank you for listening.
Does El Niño affect the weather worldwide?
Asked by Wiki User
The US gets increased percipitation in the South East and Gulf Coast. Gulf Coast temps. go down in winter too.
El nino can affect the global weather because most of the time a cold current along the coast of Peru keeps the temperature of the ocean water cool. This keeps high pressure along the west coast of south America. on the other side of the pacific ocean the water is warm around Australia witch causes warm air with low pressure the winds that blow across the pacific ocean usually blow from the high air pressure area in the west to the low pressure area in the east.
Every 2-7 years the cold current sinks and soes not push cold water up to the surface witch causes a change of weather called El Nino the warmer temp. f the surface couses the air pressure changes witch causes the winds to blow from east to west not west to east.this causes the winds to push ocean water in front of them and cause higher tides on the coasts of north and south America.
How have computers helped map el nino?
Asked by Wiki User
Computers have helped map El Nino by eliminating the background noise and improving the quality of the patterns in the foreground. Doing these things have allowed researchers to have a better visual understanding of how El Nino works and the ways in which it effects weather all over the world.
Whats the most intense El Nino event of the 20th century?
Asked by Wiki User
The 1982-83 El Niño was the strongest and most devastating of the century, perhaps the worst in recorded history. During that period, trade winds not only collapsed-they reversed direction. Its effects were long lasting as well. It caused weather-related disasters on almost every continent. Australia, Africa, and Indonesia suffered droughts, dust storms, and brush fires. Peru was hit with the heaviest rainfall in recorded history-11 feet in areas where 6 inches was the norm. California had very high rainfall and the year was characterized by extensive flooding and landsliding. The event was blamed for nearly 2,000 deaths and more than $13 billion in damage to property and livelihoods. During this period, the thermocline off the South American coast dropped to about 500 feet. On September 24, in just 24 hours, sea-surface temperatures along a coastal village in Peru shot up 7.2 degrees F.
What are four main stages in the history of oceanography?
Asked by Wiki User
- Biological
- Chemical
- Geological
- Phyiscal
Just put the word oceangraphy at the end of it and there us your answer.
What phenomenon is sometimes known as the northern light?
Asked by Wiki User
There is a sequence of events in the formation of the Northern Lights. It all starts at the sun:
- A sudden burst of energized particles from the Sun is called a solar flare.
- These charged particles leave the sun as the solar wind.
- When these particles reach Earth, they are attracted by the North and South Magnetic Poles and move towards them.
- The ionosphere is the highest level of the atmosphere, more than 50 miles (80 km) above the earth.
- In the ionosphere these charged particles collide with atoms of oxygen and nitrogen.
- The oxygen and nitrogen atoms become ionized, or excited, and they give off a burst of colored light. This burst can last from less than a second (green) to almost two minutes (red). This is similar to the way light is created in neon tubes.
- Oxygen gives off green light usually, or sometimes browny-red.
- Nitrogen gives off blue or red.
- If the collisions take place high up then oxygen gives off red. Lower down oxygen gives green and nitrogen shines blue and red. Lower down still oxygen is quiet and nitrogen still gives off blue and red.
Interestingly enough natives in the northern regions state that the lights are sometimes accompanied by a hissing noise.
What effects does El Niño have on a place or country?
Asked by Wiki User
Drought conditions in Australia == ==
How does El Nino impact Australia?
Asked by Wiki User
West of the Antarctic Peninsula, the Ross, Bellingshausen, and Amundsen Sea sectors have more sea ice during El Niño. The latter two and the Weddell Sea also become warmer and have higher atmospheric pressure.
What us an effect of La Nina?
Asked by Wiki User
El Nino means 'the child' in spanish and the affects are people like football
p.s el nino is Fernando Torres' nickname
Pp.s Torres sucks and he is a traitor
Best definition of El Nino?
Asked by Wiki User
translation is: the boy, and it revers to Christ, since it is usually notices around Christmas. It is a climate pattern that occurs across the tropical Pacific ocean on average every five years, but over a period which varies from three to seven years, and is therefore, widely and significantly, known as "quasi-periodic".
Source: Wikipedia
What instruments are used to monitor an el nino?
Asked by Wiki User
A variety of different instruments are used to measure and track El Nino. Altimeters, weather satellites, and scatterometers are all necessary instruments for measuring El Nino.
Does el nino play a part in tornado development?
Asked by Wiki User
La Niña tends to bring more tornadoes and hailstorms to southern USA.
La Nina is characterized by unusually ocean temperatures?
Asked by Wiki User
Sometimes Torres plays well but sometimes he doesn't
How do you use el nino in a sentence?
Asked by Wiki User
el nino is one of main problem in our environment.
What are some of the characteristics of El Nino?
Asked by Wiki User
The first signs of El Nino are 1. Rise in surface pressure over the Indian Ocean, Indonisia and Australia 2. Fall in air pressure over Tahiti and the rest of the central and eastern Pacific Ocean 3. Trade winds in the Pacific weaken or head east 4. Warm air rises near Peru causing rain in the northern Peruvian deserts 5. Warm air spreads from west Pacific and Indian Ocean to east Pacific. It takes rain with it causing extensive drought in the western Pacific and rainfall in the normally dry eastern Pacific
