The jet aircraft fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation? 1. There are no clouds or water vapour in the lower stratosphere. 2. There are no vertical winds in the lower stratosphere. Which of the statements given above is/are correct in this context?

QUESTION

Hard

Physical Geography

Prelims 2011

The jet aircraft fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation?

Which of the statements given above is/are correct in this context?

Select an option to attempt

Explanation

Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence.

The Stratosphere is very dry; air there contains very little water vapour. Because of this, few clouds are found in this layer.

Vertical wind shear is a change in wind speed or direction with change in altitude.

Wind shear has significant effects on control of an aircraft, and it has been a sole or contributing cause of many aircraft accidents.

There is no vertical wind shear in the lower stratosphere. That's why planes fly in that region to avoid turbulence or an accident.

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