Civil Services Prepby Garima Malik & Nitin Sangwan Account

UPSC Prelims · General Studies

Geography

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Climatology

Jet streams and upper-air circulation

Practise 1 PYQ

Concepts to cover

  1. Jet streams: high-speed upper-troposphere westerly winds in both hemispheres
  2. Subtropical westerly jet and polar front jet; seasonal shift
  3. Tropical easterly jet and the Somali jet in summer
  4. Rossby waves and meandering of the jet
Where to study

Fundamentals of Physical Geography, Class XI, chapter 9: Atmospheric Circulation and Weather Systems (Reprint 2026-27)

  • ch. 9, Atmospheric Circulation and Weather Systems, p. 1-10 (book pages 76-85)

Geography Micro topics

  • Geostrophic Wind, Jet Streams & Rossby Waves
  • Major Jet Streams
  • Rossby Waves

India: Physical Environment, Class XI, chapter 4: Climate (2026-27)

  • ch. 4, jet stream, p. 5 (book page 31)
  • ch. 4, Understanding the Monsoon, p. 7-8 (book pages 33-34)
  • ch. 4, westerly jet stream, p. 5 (book page 31)
  • ch. 4, easterly jet stream, p. 5 (book page 31)

Frequently asked Questions (FAQs) on Monsoon

  • Tropical easterly Jet, p. 4
Related past questions