Unlock Elite Access: Level Up Your Preparation with Exclusive Content

Geography Optional 300+ Score Pack · Model answer

Critically examine the basis and scheme of climatic classification proposed by G.T. Trewartha.

  • UPSC 2018
  • Climatology

Glenn Thomas Trewartha of the University of Wisconsin modified Wladimir Köppen's scheme through successive editions from the late 1930s. The 1954 version is the one mapped for India. He published his own six-group scheme in 1966, revised with Lyle H. Horn in 1980.

You are reading the opening of the model answer. The full answer is part of the Geography Optional 300+ Score Pack.

What the full answer covers

  • Basis of the Scheme
  • The Scheme
  • Indian application
  • Departures from Köppen
  • Critical Evaluation
  • Strengths
  • …and 1 more sections, with a conclusion

Unlock this answer and 800+ more

  • 820 solved PYQ model answers (2013–2026), Paper I and Paper II
  • Topic-wise across all 20 syllabus units
  • 20 PYQ Pattern Analysis & Strategy reports, one per unit
  • Diagrams and maps drawn inside the answers, where you would draw them
  • 500 days of access from the day you enrol, on phone, laptop or tablet

₹1,770₹2,50029% off

Get Geography Optional 300+ Score Pack @ ₹1,770 →

One-time payment · No subscription · Instant access · UPI, cards, RuPay

See every Climatology question (67 solved) →Already enrolled? Log in