How does the polar vortex affect the upper atmosphere, such as the mesosphere and thermosphere?

Oct 19, 2023 ... Polar vortex is the name given to the strong currents of wind formed by low pressure that occurs in the Arctic and Antarctic regions. The name ... Feb 17, 2025 ... "Polar vortex" usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter. Sep 2, 2014 ... This synthetic analysis reveals that polar stratospheric variability is partly controlled by marked losses of Arctic sea-ice, especially over the B–K seas. Jan 16, 2025 ... Temperatures to plummet from polar vortex-related Arctic blast ... A powerful Arctic outbreak tied in part to the polar vortex is set to send ... Jan 23, 2019 ... A large area of low pressure and arctic air swirling above the North Pole fractured and split into three pieces. Mar 5, 2021 ... The Arctic polar vortex is a band of strong westerly winds that forms in the stratosphere between about 10 and 30 miles above the North Pole every winter. Dec 9, 2014 ... We investigate the impact of volcanic aerosol forcing on stratospheric dynamics, including the strength of the NH polar vortex, in ensemble simulations. Jan 31, 2019 ... NASA's Atmospheric Infrared Sounder (AIRS) instrument captures a polar vortex moving from Central Canada into the US Midwest from January 20 through January 29. With a stronger jet stream, stormy and very wet weather tends to occur. A weaker jet stream allows more frequent spells of northerly or easterly winds to affect ... Feb 3, 2023 ... A term associated with a spell of extremely cold weather and snow that impacted the UK during late February and early March 2018, following a sudden ...