January was freakishly mild across much of the Northern Hemisphere. Temperatures surged some 10 or more degrees above normal in parts of Europe, while the Earth as a whole took the top spot for ...

The reason is the appearance of a mostly positive phase of the Arctic Oscillation (AO), which tends to produce less snow and warmer-than-average temperatures over the wintertime North America and ...

Many analysts may have underestimated or overlooked the impact of Arctic Oscillation, the mercurial player known as “AO,” on the team’s performance. La Nina is part of the El Nino Southern ...

Another global feature we want to study and try to forecast is the Arctic Oscillation (AO). This is a climate pattern that helps to determine the shifts in pressure between the Arctic and the mid ...

As wildfires continue to ravage regions from Los Angeles to South Korea, a new study featured on the cover of Advances in ...

In the winter season, meteorologists keep an eye on the arctic oscillation - called AO. The AO is a large scale mode of climate variability, also referred to as the Northern Hemisphere annular mode.

And it was all thanks to a strongly negative Arctic Oscillation (AO), which favors cold air outbreaks across the US. This warming event in the Arctic weakened the polar vortex, which normally ...

A positive Arctic Oscillation, or AO, indicates cold air is trapped in the Arctic; when the AO flips negative, cold air crashes south. A record-strong polar vortex last winter meant a positive AO ...

The AO is simply put, a ribbon of strong winds ... (cooling ocean water of the west coast of South America) and the Arctic Oscillation that has created the crazy weather patterns of the season ...