Asia, and the Eastern U.S., and anomalously warmer temperatures over the Canadian Arctic and subtropical Asia," explained NOAA's Butler. (These temperature contrasts are based on where the jet stream, which separates cold air from warmer air, tends to get nudged by a disturbed polar vortex....
An interesting occurrence of a Rossby wave breaking event observed during the VORCORE experiment is presented and explained. Twenty-seven balloons were launched inside the Antarctic polar vortex. Almost all of these balloons evolved in the stratosphere around 500K within the vortex, except the one ...
This swirling mass of air above the Arctic can grow and bend, pushing blasts of frigid air south.
Define polarimetry. polarimetry synonyms, polarimetry pronunciation, polarimetry translation, English dictionary definition of polarimetry. n. An instrument used to measure the rotation of the plane of polarization of polarized light passing through an o
shrinks. Chen pointed out that this weakens the western wind in middle latitude regions thus weakening its ability to prevent cold waves from going south, which, combined with the increasingly frequent unstable polar vortex that unleashes more cold waves, the frequency of cold weather naturally gets...
February Outlook: La Niña, polar vortex cast a wintry shadow 2025 Groundhog Day results: See them here! 1:37 Coyote attacks on the rise in Toronto neighbourhood, residents demand action More than a third of Canada's drownings happen in the colder months: Safety tips 1:55 Three winter se...
We here show that for the period 1992-2000 the major part (75%) of the observed ozone decrease in March in the Arctic and most of the variability may be explained by winter/spring ozone depletion in the polar vortex. A good correlation (0.96) between the Arctic ozone decreases and the ...
The specified value denotes the explained variance ratio. b Interannual variation of observed and simulated WACE index. Blue and black lines denote the observed WACE index and WACE index for the 100-member ensemble mean, respectively; 25th–75th percentiles and 5th–95th percentiles of the ensemble...
we find that AO modulated the variability in almost all the states and had a positive effect. The positive AO phase enhances the rate of tornadoes in these states. A positive AO phase typically creates a warmer than normal winter in the U.S. through the polar vortex activity44that keeps co...
Ok! (HealthDay)— As a giant polar vortex sweeps down over most of the United States, bringing with it temperatures so frigid that frostbite and hypothermia can happen within minutes, doctors have some advice for those who dare to venture outside. ...