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UPSC Prelims · General Studies

Geography

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Climatology

Koppen's scheme and the tropical climates

Practise 3 PYQs

Concepts to cover

  1. Koppen's classification: groups A to E, letters for rainfall and temperature
  2. Hot wet equatorial climate (Af): uniform temperature, daily convectional rain, low range
  3. Tropical monsoon (Am) and tropical marine climates: seasonal reversal of winds
  4. Savanna or Sudan climate (Aw): distinct wet and dry seasons
  5. Hot desert (BWh) and mid-latitude desert and steppe (BS) climates: western margins, trade-wind coasts
Where to study

Fundamentals of Physical Geography, Class XI, chapter 11: World Climate and Climate Change (Reprint 2026-27)

  • ch. 11, World Climate and Climate Change, p. 1-8 (book pages 91-98)
  • ch. 11, Koeppen, p. 1-2 (book pages 91-92)
  • ch. 11, Tropical Wet Climate (Af), p. 2 (book page 92)
  • ch. 11, Tropical Monsoon Climate (Am), p. 2 (book page 92)
  • ch. 11, Tropical Wet and Dry Climate (Aw), p. 2 (book page 92)
  • ch. 11, Dry Climates : B, p. 3 (book page 93)
  • ch. 11, Subtropical Steppe (BSh) and Subtropical Desert (BWh) Climates, p. 3 (book page 93)

Certificate Physical and Human Geography · Goh Cheng Leong

  • ch. 14, Climate
  • ch. 15, The Hot, Wet Equatorial Climate
  • ch. 16, The Tropical Monsoon and Tropical Marine Climates
  • ch. 17, The Savanna or Sudan Climate
  • ch. 18, The Hot Desert and Mid-Latitude Desert Climates
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