Gujarat BoardEnglish MediumSTD 9Social ScienceClimate2 Marks
Question
Write a note on Jet Stream.
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Answer
In both hemispheres around 30° latitudes, very powerful winds in a pipe-shaped belt blow with high speed in the atmosphere at an altitude of 8 to 15 km. These winds are known as ‘Jet Streams’.
The average velocity of Jet Streams is about 150 km per hour and in the central part of this wind belt, their velocity is about 400 km.
During winter these winds blow over the southern slope of Himalayas and in summer these are stationed over Peninsular Plateau.
High altitude winds help to bring rain.
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