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North Atlantic Oscillation (NAO)

North Atlantic Oscillation (NAO)
Image: Wikimedia Commons/Hanno

North Atlantic Oscillation (NAO)

A large-scale pattern of atmospheric pressure in the North Atlantic Ocean shifts naturally between high and low...and then it shifts again.

Investigate how the North Atlantic Oscillation, or NAO, affects your weather, the causes of this phenomenon, and its historical role in our changing climate.

Encyclopedia Britannica
2012 Designated Hottest Year on Record for Continental U.S.

2012 Designated Hottest Year on Record for Continental U.S.

In its winter of 2012 positive phase, the NAO contributed to making that year the warmest on record for the continental U.S. Watch climate expert Anthony Barnston explain it all. More...

Video
Columbia University
Greenland Goes Green: Ice Sheet Melted in 4 Days

Greenland Goes Green: Ice Sheet Melted in 4 Days

A massive area of ice in Greenland melted in only 4 days in 2012. Find out why one of the factors for the thaw was the North Atlantic Oscillation. More...

Video
PBS NewsHour
Long Distance Relationships: the Arctic and North Atlantic Oscillations

Long Distance Relationships: the Arctic and North Atlantic Oscillations

Like a bowl of water sloshing back and forth, global air pressure strengthens and weakens. Investigate the relationships between weather patterns in far-flung regions. More...

Article
NOAA
Sea Surface Wind Anomalies in North Atlantic

Sea Surface Wind Anomalies in North Atlantic

Watch how all the little white arrows move: They show the wind patterns of a North Atlantic Oscillation, or NAO. More...

Video
NASA
Sea-Ice Formation Sustained the ‘Little Ice Age’

Sea-Ice Formation Sustained the ‘Little Ice Age’

Until recently, scientists thought the NAO was the main cause of Europe’s Little Ice Age, a 15th-century cooling trend. Find out what changed their minds. More...

Article
Phys.org
Study Links Swings in North Atlantic Oscillation Variability to Climate Warming

Study Links Swings in North Atlantic Oscillation Variability to Climate Warming

Watch the North Atlantic Oscillation in action as it shifts between its positive and negative phases. Discover the weather results of both in North America and Europe. More...

Video
Woods Hole Oceanographic Institution
The Highs and Lows of the NAO

The Highs and Lows of the NAO

The changing high- and low-pressure systems of the North American Oscillation greatly affect Europe’s winter storms. These animations show what the wind does in each system. More...

Interactive
Earth Observatory/NASA
The North Atlantic Oscillation

The North Atlantic Oscillation

The North Atlantic Oscillation affects the weather in the Northern Hemisphere via low-pressure over Iceland and high-pressure in the subtropical Atlantic. More...

Article
Windows to the Universe
Weather-Maker Patterns: An Interactive Map

Weather-Maker Patterns: An Interactive Map

Atmospheric patterns shape Earth's weather and climate. Research the North Atlantic Oscillation, El Niño and La Niña, and other regional oscillations. More...

Interactive
UCAR

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