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A circumpolar vortex, or simply polar vortex, is a large region of cold, rotating air; ... In 2017, Francis explained her findings to the Scientific American: ...
"The term 'polar vortex' has become more commonly used in the past couple of years but the phenomenon has been around forever," National Weather Service meteorologist Mark Chenard told Reuters in ...
AccuWeather forecasters break down the science behind the polar vortex and how it can influence the weather for locations thousands of miles away. While the name for this phenomenon may sound ...
Developing barotropic instability of Saturn's North Polar hexagonal circumpolar jet (Jet) plus North Polar vortex (NPV) system produces a long-living structure akin to the observed hexagon, which is not the case of the Jet-only system, which was studied in this context in a number of papers in literature. The NPV, thus, plays a decisive ...
In general, vortex lines (in particular, the axis line) are either closed loops or end at the boundary of the fluid. A whirlpool is an example of the latter, namely a vortex in a body of water whose axis ends at the free surface. A vortex tube whose vortex lines are all closed will be a closed torus-like surface.
Polar vortex. It's a phrase that becomes very popular has achieved buzzword status and is often used frequently during the winter as the Northern Hemisphere endures its coldest months of the year ...
The polar vortex is a gigantic, circular area of cold air high up in the atmosphere that typically spins over the North Pole (as its name suggests).
The_Polar_Vortex_Explained_in_2_Minutes.webm (WebM audio/video file, VP8/Vorbis, length 2 min 12 s, 640 × 360 pixels, 1.04 Mbps overall) This is a file from the