IGNOU MGG 5 2026 - Describe the significance of jet streams in shaping global weather pat

Question

Describe the significance of jet streams in shaping global weather patterns and aviation routes.

20 Jan 2026

Answer :

Word Count : 281

Jet streams are narrow bands of strong, high-altitude winds that flow predominantly from west to east in the upper troposphere, near the tropopause. They arise due to sharp horizontal temperature gradients between contrasting air masses, particularly between polar and tropical regions, and are intensified by the Earth’s rotation through the Coriolis force. Their significance in shaping global weather patterns is profound, as they act as major steering

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