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Polar vortex is a
- a)Persistent, the large-scale cyclone that circles either of the planet's geographical poles
- b)Persistent large-scale ocean current in either of the Earth's geographical poles
- c)Higher atmospheric jet stream over the polar regions
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
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Polar vortex is a a) Persistent, the large-scale cyclone that circles...
Polar Vortex
The polar vortex is a persistent, large-scale cyclone that circles either of the planet's geographical poles. Here is a detailed explanation of what the polar vortex is:
Definition
The polar vortex is a low-pressure system that is located in the upper atmosphere, typically in the stratosphere, and is centered on the Earth's poles. It is strongest in the winter months and weakens or breaks down in the summer.
Nature
The polar vortex is a natural phenomenon that has always existed, but it has gained more attention in recent years due to its impact on weather patterns and extreme cold outbreaks in certain regions.
How It Forms
The polar vortex forms and is maintained by the temperature difference between the polar regions and the mid-latitudes. This temperature difference creates a strong wind pattern that circles the poles.
Impact on Weather
When the polar vortex weakens or shifts, it can lead to disruptions in the jet stream and result in extreme weather events such as cold outbreaks, heavy snowfall, and even heatwaves in some regions.
Conclusion
In conclusion, the polar vortex is a persistent, large-scale cyclone that plays a crucial role in shaping weather patterns around the world, particularly during the winter months. Understanding the polar vortex is essential for predicting and preparing for extreme weather events.
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Polar vortex is a a) Persistent, the large-scale cyclone that circles...
- There are two polar vortices in the Earth's atmosphere, which overlie the North and South Poles. Each polar vortex is a persistent, large-scale, low-pressure zone that rotates counterclockwise at the North Pole (called a cyclone), and clockwise at the South Pole.
- The bases of the two polar vortices are located in the middle and upper troposphere and extend into the stratosphere. Beneath that lies a large mass of cold, dense arctic air. The vortices weaken and strengthen from year to year. Northern polar vortex's southward shift will bring heavily cold weather in the northern regions.
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Polar vortex is a a) Persistent, the large-scale cyclone that circles either of the planet's geographical polesb) Persistent large-scale ocean current in either of the Earth's geographical polesc) Higher atmospheric jet stream over the polar regionsd) None of the aboveCorrect answer is option 'A'. Can you explain this answer?
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