News tagged with el nino
La Nina going away, but too late for Texas drought
(AP) -- Federal weather forecasters say the La Nina weather phenomenon that contributed to the southwestern U.S. drought is winding down.
Feb 09, 2012 |
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El Nino, La Nina to become more dominant in New Zealand with climate change
(PhysOrg.com) -- El Niño and La Niña weather patterns will become even more dominant in New Zealand with climate change, according to research from The University of Auckland published in Nature Climate Change.
Space & Earth / Earth Sciences
Feb 08, 2012 |
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2011 a record-breaking year for extreme weather: US
Last year broke records for extreme weather in the United States, with 14 events each causing at least a billion dollars in damage, US authorities said on Thursday.
Jan 19, 2012 |
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Past decade ties for world's hottest: UN agency
Thirteen of the warmest years recorded have occurred within the last decade and a half, the UN's World Meteorological Organisation said on Tuesday.
Nov 29, 2011 |
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La Nina returns, but weaker impact seen: UN weather agency
The UN weather agency said on Thursday that La Nina, a phenomenon linked to flooding and drought, had re-emerged in the tropical Pacific since August but its impact is expected to be weaker this time.
Nov 17, 2011 |
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Sea change can forecast South American wildfires
Tiny temperature changes on the Atlantic and Pacific oceans provide an excellent way to forecast wildfires in South American rainforests, according to UC Irvine and other researchers funded by NASA.
Space & Earth / Earth Sciences
Nov 10, 2011 |
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Antarctic fur seals breed where they were born
Scientists have discovered that female Antarctic fur seals have an uncanny ability to return to within a body length of where they were born when it's time to breed.
Oct 28, 2011 |
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50-million-year-old clam shells provide indications of future of El Nino phenomenon
Earth warming will presumably not lead to a permanent El Niño state in the South Pacific Ocean. This is the conclusion drawn by an international team of researchers after it investigated 50-million-year-old clam shells ...
Space & Earth / Earth Sciences
Sep 19, 2011 |
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Honduran earthquake of 2009 destroyed half of coral reefs of Belizean Barrier Reef lagoon
Earth's coral reefs have not been faring well in recent decades, facing multiple threats from pollution, disease, elevated water temperatures, and overfishing. Often referred to as the "rainforests of the Sea," coral reefs ...
Sep 12, 2011 |
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Climate cycles are driving wars, says study
In the first study of its kind, researchers have linked a natural global climate cycle to periodic increases in warfare. The arrival of El Niño, which every three to seven years boosts temperatures and ...
Space & Earth / Earth Sciences
Aug 24, 2011 |
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International mission to measure saltiness of sea
(AP) -- An international mission will chart the saltiness of the ocean - from outer space.
Space & Earth / Earth Sciences
Jun 06, 2011 |
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Tree rings open door on 1100 years of El Nino
(PhysOrg.com) -- El Nino and La Nina, the periodic shifts in Pacific Ocean temperatures, affect weather around the globe, and many scientists have speculated that a warming planet will make those fluctuations ...
Space & Earth / Earth Sciences
May 27, 2011 |
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Ancient El Nino clue to future floods
(PhysOrg.com) -- Dramatic climate swings behind both last year's Pakistan flooding and this year’s Queensland floods in Australia are likely to continue as the world gets warmer, scientists predict.
Space & Earth / Earth Sciences
May 26, 2011 |
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Australian meteorologists call an end to La Nina
Australian meteorologists on Wednesday declared La Nina, the disruptive weather pattern behind floods and cyclones that brought death and destruction this year, to have ended.
Space & Earth / Earth Sciences
May 25, 2011 |
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Tree rings tell a 1,100-year history of El Nino
El Niño and its partner La Niña, the warm and cold phases in the eastern half of the tropical Pacific, play havoc with climate worldwide. Predicting El Niño events more than several months ahead ...
Space & Earth / Earth Sciences
May 06, 2011 |
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El Niño-Southern Oscillation
El Niño-Southern Oscillation (abbrieviated as ENSO and commonly called simply El Niño), is an intensification of monthly or seasonal fluctuations in the air pressure difference between Tahiti and Darwin, Australia caused by warming of surface waters of the tropical Eastern Pacific Ocean that occurs every three to eight years. The name is from the Spanish for "the little boy", refers to the Christ child, because the phenomenon is usually noticed around Christmas in the Pacific near South America. A period of cooling in the tropical Pacific is the opposite extreme in the natural ENSO cycle and is called La Niña.
The mechanisms that sustain the El Niño - La Nina cycle remain a matter of research, but El Nino is associated with disruption of Pacific trade winds and a stronger than usual so-called Madden-Julian oscillation, which is the frequent and regularly occurring eastward progression of tropical rainfall over the Pacific.
El Niño is associated with floods, droughts and is linked to other weather disturbances in many locations around the world. El Niño's effects in the Atlantic Ocean lag behind those in the Pacific by 12 to 18 months. Developing countries dependent upon agricultural and fishing are especially affected. But El Niño's effects on weather vary with each event, and ENSO's intensity or frequency may change as a result of global warming. Research suggests that treating ocean warming which occurs in the eastern tropical Pacific separately from that of the central tropical Pacific may help explain some of these variations.
For more information about El Niño-Southern Oscillation, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
