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Geography Optional 300+ Score Pack · Model answer

Discuss as to how frontogenesis contributes to weather instability.

  • UPSC 2015
  • Climatology

Frontogenesis — Tor Bergeron's term (1928) — is the sharpening of the horizontal temperature and density gradient between two converging air masses into a narrow frontal zone, or the regeneration of a decaying one.

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What the full answer covers

  • 1. Forced Ascent Along the Frontal Surface
  • 2. Latent Heat Converts Lifting into Buoyancy
  • 3. The Secondary Circulation Makes Frontogenesis Self-Reinforcing
  • 4. From Front to Cyclone
  • 5. Regional and Current Evidence

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