polar vortex知識摘要

Polar vortex - Wikipedia, the free encyclopedia
A polar vortex is a persistent, large-scale cyclone that circles either of the planet's geographical poles. On Earth, the base of the polar vortices are located in the middle and upper troposphere and extend into the stratosphere. They surround the polar

Frigid air from the North Pole: What's this polar vortex? - CNN.com
Americans in two dozen states from the Midwest to the Southeast and Northeast are shivering this week courtesy of a distorted polar vortex. The rush of cold air it's sending southward is the biggest visitor from the North Pole since Santa Claus. The gifts

Polar Vortex News, Photos and Videos - ABC News
Browse Polar Vortex latest news and updates, watch videos and view all photos and more. Join the discussion and find more about Polar Vortex at abcnews.com ... Instant Index: Polar Vortex May Have an Effect on Booking Trips to Warm Places Thu, 27 Feb 2014

What Is A Polar Vortex - Business Insider
As tundra-like temperatures and wind chills as cold as 70 below zero fan out across the country, everyone is blaming the "polar vortex." Polar vortexes, though, are nothing new. They occur seasonally at the North Pole, and their formation resembles that o

What is a Polar Vortex? - Local Weather from AccuWeather.com - Superior Accuracy™
"The polar vortex is not a recently discovered phenomenon; in fact, it has been talked about in the meteorological world for decades," AccuWeather.com Senior Meteorologist Bernie Rayno said. A polar vortex is a large pocket of very cold air, typically the

What Is The Polar Vortex? - NWS Central Region Headquarters
Skip Navigation NOAA weather.gov National Weather Service Weather Forecast Office Kansas City/Pleasant Hill, MO Home Site Map News Organization Search for: NWS All NOAA

What Is The Polar Vortex And Why Is It Doing This To Us? : The Two-Way : NPR
We've mentioned the polar vortex several times in recent days. We've said, for instance, that it's "a low pressure system that's usually whirling around the North Pole but has weakened and come south." But we're still getting asked this question: Just wha

Arctic Ozone Watch: Facts about the polar vortex
Facts about the polar vortex ... The stratospheric polar vortex shows quite a bit of day-to-day variability. This variability is caused by weather systems or large-scale waves that move upward from the troposphere into the stratosphere.

What's a Polar Vortex?: The Science Behind Arctic Outbreaks | Weather Underground
One of the coldest Arctic outbreaks in two decades has plunged into country, bringing bitterly cold temperatures to the Midwest, South and East. You may have heard us at weather.com and The Weather Channel mention the "polar vortex" during this outbreak.

What is a polar vortex, and why is it here? - The Washington Post
The polar vortex that is chilling us this week is a band of low pressure and frigid air centered around the North Pole. ... The polar vortex that is chilling us this week is a band of low pressure Arctic air normally centered around the North Pole. It is