Q. With reference to the polar vortex, consider the following statements:
- The polar vortex is a vast zone of low pressure that swirls around the Earth's poles.
- Sudden stratospheric warming can cause the polar vortex to collapse, allowing Arctic air to surge southward.
- The polar vortex extends from the tropopause through the stratosphere and into the mesosphere.
Select the correct option from the codes given below:
Answer:
All three
Notes:
- The polar vortex is a vast zone of low pressure that swirls around the Earth's poles. Correct: It is an atmospheric feature that influences winter weather patterns by containing frigid air around the poles.
- Sudden stratospheric warming can cause the polar vortex to collapse, allowing Arctic air to surge southward. Correct: This phenomenon leads to a rapid temperature increase in the stratosphere, disrupting the polar vortex and allowing cold Arctic air to move southward, resulting in extreme weather conditions.
- The polar vortex extends from the tropopause through the stratosphere and into the mesosphere. Correct: The polar vortex extends from the tropopause (the dividing line between the stratosphere and troposphere) through the stratosphere and into the mesosphere (above 50 km).