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Climate Change Driving More Active El Nio Cycles, Study Says

2013-07-01 19:01:00| Climate Ark Climate Change & Global Warming Newsfeed

Yale Environment 360: A new analysis of tree-ring data indicates that the climate cycle known as the El Nio Southern Oscillation (ENSO) has been more active during the latter part of the 20th century than at any other time during the past seven centuries, suggesting that global warming is affecting this climate phenomenon. Using data from 2,222 tree-ring chronologies from the tropics and mid-latitudes in both the northern and southern Hemispheres, a team of scientists determined that ENSO-related behavior in the late...

Tags: change study active says

 

Climate researchers discover new rhythm for El Nio

2013-05-27 16:48:00| Climate Ark Climate Change & Global Warming Newsfeed

ScienceDaily: El Nio wreaks havoc across the globe, shifting weather patterns that spawn droughts in some regions and floods in others. The impacts of this tropical Pacific climate phenomenon are well known and documented. A mystery, however, has remained despite decades of research: Why does El Nio always peak around Christmas and end quickly by February to April? Now there is an answer: An unusual wind pattern that straddles the equatorial Pacific during strong El Nio events and swings back and forth...

Tags: discover researchers climate rhythm

 
 

New way to identify which El Nio events will have biggest impact on U.S. winter weather

2013-02-08 17:03:00| Climate Ark Climate Change & Global Warming Newsfeed

ScienceDaily: Weather forecasters have long known that El Nio events can throw seasonal climate patterns off kilter, particularly during winter months. Now, new research from NOAA and the University of Washington suggests that a different way to detect El Nio could help forecasters predict the unusual weather it causes. A network of buoys that spans the Pacific, the TAO-Triton array, observes conditions in the upper ocean and is essential for forecasting El Nio months in advance, and for monitoring it as...

Tags: us events impact winter

 

Forecaster keeps neutral El Nio outlook for Northern Hemisphere spring

2013-02-07 19:36:00| Climate Ark Climate Change & Global Warming Newsfeed

Reuters: The National Oceanic and Atmospheric Administration (NOAA), a key U.S. weather forecaster, on Thursday held to its view that the El Nio climate phenomenon should pose few weather problems in the Northern Hemisphere through spring. In its monthly report, the U.S. Climate Prediction Center (CPC), a part of NOAA's National Weather Service, said prediction models overall point to a neutral forecast through spring, though it has less confidence in its outlook for summer. While maintaining a neutral...

Tags: spring northern outlook neutral

 

El Nio unlikely through Northern Hemisphere spring: CPC

2013-01-10 23:01:00| Climate Ark Climate Change & Global Warming Newsfeed

Reuters: The U.S. national weather forecaster reiterated its prediction that the much-feared El Nio phenomenon is unlikely to affect the Northern Hemisphere weather this spring. In its monthly report on Thursday, the U.S. Climate Prediction Center (CPC) said conditions will remain neutral for the next few months, further reducing the chances of a drought in Asia and flooding in South America. The report also raised the possibility that the pattern that can wreak havoc on weather would not reappear...

Tags: spring northern hemisphere cpc

 

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