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Syllabus

Atmospheric Circulation and Weather Systems — Syllabus

CBSE · Class 11 · Geography

What Atmospheric Circulation and Weather Systems covers in CBSE Class 11 Geography: 4 topics, for the 2026-27 session.

65 questions80 flashcards5 formulas & key relations5 concepts

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4 Topics · CBSE Class 11 Geography · 2026-27

Topics in Atmospheric Circulation and Weather Systems

1

Atmospheric Pressure and Its Variation

  • Atmospheric pressure is the weight of a column of air from mean sea level to the top of the atmosphere per unit area.
  • It is expressed in millibar.
  • The average atmospheric pressure at sea level is 1,013.2 mb.
2

Forces Affecting Wind

  • Wind is air in motion.
  • Near the Earth's surface, wind is affected by pressure gradient force, frictional force, Coriolis force, and gravitational force acting downward.
  • Pressure gradient force is produced by differences in atmospheric pressure.
3

Global Pressure Belts and General Circulation

  • Near the equator, sea-level pressure is low and the area is called the equatorial low.
  • Along 30° N and 30° S are the subtropical highs.
  • Along 60° N and 60° S are the sub polar lows.
4

Air Masses and Fronts

  • An air mass is a large body of air with little horizontal variation in temperature and moisture.
  • It acquires the characteristics of the source region over which it forms.
  • There are five major source regions for air masses.

Key Concepts

Central concept: Atmospheric circulation and weather systems are controlled by pressure differences, winds, air masses, fronts, and storms that redistribute heat and moisture on Earth.

Atmospheric pressureForces affecting windPressure gradient forceCoriolis forceGeostrophic windPressure beltsGeneral circulation of atmosphereHadley Cell

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Frequently Asked Questions

What are the important topics in Atmospheric Circulation and Weather Systems for CBSE Class 11 Geography?
Key topics in Atmospheric Circulation and Weather Systems include Atmospheric Pressure and Its Variation, Forces Affecting Wind, Global Pressure Belts and General Circulation, Air Masses and Fronts. Study these first, then practise questions on each for Class 11 exams.
How should I revise Atmospheric Circulation and Weather Systems for Class 11 exams?
Learn the core ideas first, then work through the 65 practice questions on Atmospheric Circulation and Weather Systems. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All CBSE Class 11 Geography Syllabus

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