Discuss the mechanism of Polar Vortex. How is Polar Vortex related to the mechanism of climate change?

Open in App

Solution

Approach:

Define Polar Vortex.

Discuss different types and significance of Polar Vortex.

How is the weather of any region influenced by Polar Vortex?

How is Polar Vortex related to the mechanism of climate change?

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 "vortex" refers to the counterclockwise flow of air that helps keep the colder air near the Poles. Many times during winter in the northern hemisphere, the polar vortex will expand, sending cold air southward with the jet stream (see graphic above). This occurs fairly regularly during wintertime and is often associated with large outbreaks of Arctic air in the United States. The one that occurred January 2014 is similar to many other cold outbreaks that have occurred in the past, including several notable colder outbreaks in 1977, 1982, 1985 and 1989.

How is Polar Vortex related to climate change?

Suggest Corrections

Similar questions

Q. Consider the following statements with reference to Polar Vortex:

Which of the statements given above is/are correct?

Q. ध्रुवीय भंवर (Polar Vortex) के संदर्भ में निम्नलिखित कथनों पर विचार कीजिए:

ये केवल सर्दियों में ही दिखाई देते हैं।
ये केवल क्षोभमंडल में ही होते हैं।
एक शक्तिशाली ध्रुवीय भंवर एक शक्तिशाली जेट स्ट्रीम के लिए अनुकूल होता है।

उपर्युक्त कथनों में से कौन सा/से सही है/हैं?

1 only
केवल 1
1 and 3 only
केवल 1 और 3
3 only
केवल 3
2 and 3 only
केवल 2 और 3

Consider the following statements:
1. Polar vortex is a large area of low pressure and cold air surrounding both poles of the earth.
2. In northern hemisphere Polar Vortex rotates in clockwise direction and helps divert the colder air away from the poles.
Which of the statements given above is/are correct?

निम्नलिखित कथनों पर विचार करें।
1. ध्रुवीय भंवर (Polar Vortex) पृथ्वी के दोनों ध्रुवों के आसपास कम दबाव और ठंडी हवा का एक बड़ा क्षेत्र है।
2. उत्तरी गोलार्ध में ध्रुवीय भंवर घड़ी की दिशा में घूमता है और ठंडी हवा को ध्रुवों से दूर जाने में मदद करता है।
ऊपर दिए गए कथनों में से कौन सा/से सही है / हैं?

___ leads to the melting of polar ice caps and odd climatic changes.

Q. Secondary butyl chloride undergo alkaline hydrolysis in the polar solvent by ___________ mechanism.

Q. Secondary butyl chloride undergo alkaline hydrolysis in the polar protic solvent by ______ mechanism.

Join BYJU'S Learning Program