Atmospheric Circulation and Weather Systems

In the NCERT Geography book Fundamentals of Physical Geography (Class 11, Chapter — “Atmospheric Circulation and Weather Systems”), you explore how air moves in the atmosphere and how these movements influence global weather patterns.

You learn about the global pressure belts and planetary wind systems such as trade winds, westerlies, and polar winds. The chapter explains how differences in temperature and pressure create large-scale atmospheric circulation that distributes heat across the Earth.

You also study important weather systems such as cyclones, anticyclones, air masses, and fronts, which play a key role in changing weather conditions. The concept of jet streams is also introduced to explain fast-moving winds in the upper atmosphere.