A circumpolar vortex, or simply polar vortex, is a large region of cold, rotating air; polar vortices encircle both of Earth's polar regions. Polar vortices also exist on other rotating, low-obliquity …

The polar vortex is a large area of low pressure and cold air surrounding both of the Earth’s poles. It ALWAYS exists near the poles, but weakens in summer and strengthens in winter. The term …

Dec 4, 2024 · We define the strength of the polar vortex by the fierceness of the west-to-east winds at a latitude of 60 degrees North and 10-hPa (~19 miles/30 kilometers). After it wakes …

Jan 20, 2014 · polar vortex, large area of persistent low pressure generally located above each of Earth’s polar regions and containing a mass of extremely cold air.

Dec 20, 2024 · The polar vortex is a whirling cone of low pressure over the poles that's strongest in the winter months due to the increased temperature contrast between the...

Dec 5, 2024 · The polar vortex is an area of low pressure—a wide expanse of swirling cold air—that is parked in polar regions. During winter, the polar vortex at the North Pole expands, …

Mar 15, 2019 · The term polar vortex is used to describe several different features in the atmosphere. It most commonly refers to a planetary- scale mid- to high-latitude circumpolar …

Jan 4, 2018 · The polar vortex is the region of the atmosphere that contains the hemisphere’s cold air, rotating from west to east. In the Northern Hemisphere, the axis of the rotation is generally …

Jan 29, 2019 · The polar vortex is a large circulation of low pressure and cold air that forms every winter in the stratosphere above the North and South poles. The term vortex refers to the …

POLAR VORTEX definition: 1. an area of low pressure and cold air that forms near the North or South Pole and is stronger in…. Learn more.