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Which one of the following statements with regard to Jet stream, an upper level troposphere wave, is not correct?

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  1. It is a narrow band of high-velocity wind.
  2. It follows the wave path near the tropopause at elevations of 8 km to 15 km.
  3. Jet streams are typically continuous over long distances.
  4. In summer, the polar front jet achieves its maximum force.

Answer (Detailed Solution Below)

Option 4 : In summer, the polar front jet achieves its maximum force.
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  • Jet streams are narrow bands of strong wind in the upper levels of the atmosphere, more particularly, troposphere.
  • It follows the wave path near the tropopause at an elevation of 8 km to 15 km.
  • They are generally continuous over a long distance and can be thousands of miles long also.
  • The polar-front jets are best developed in winter and early spring.
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