Geography (Atmospheric Circulation and Weather System)

This Exam Covers the Following Topics

  1. Atmospheric Pressure
    • Definition and measurement (using millibars)
    • Vertical and horizontal variation of pressure
  2. Pressure Gradient Force
    • Concept and impact on wind speed
    • Influence of isobar patterns
  3. Coriolis Force
    • Definition and effects on wind direction
    • Differences in the Northern and Southern Hemispheres
  4. Forces Affecting Wind
    • Pressure Gradient Force, Frictional Force, Coriolis Force
    • Combined effect on wind velocity and direction
  5. Geostrophic Wind
    • Winds in the upper atmosphere controlled by pressure gradient and Coriolis forces
  6. Cyclones and Anticyclones
    • Characteristics and wind patterns
    • Differences between cyclonic and anticyclonic circulations
  7. General Circulation of the Atmosphere
    • Planetary wind systems
    • Hadley Cell, Ferrel Cell, and Polar Cell
  8. Land and Sea Breezes
    • Daytime and nighttime wind patterns near coastal areas
  9. Mountain and Valley Winds
    • Wind patterns in mountainous regions (katabatic and anabatic winds)
  10. Air Masses
    • Classification of air masses based on source regions
    • Maritime and continental air masses
  11. Fronts
    • Definition and types: cold front, warm front, occluded front, and stationary front
    • Frontogenesis
  12. El Nino and Southern Oscillation (ENSO)
    • Impact of El Nino on global weather patterns
    • Interaction between oceanic currents and atmospheric pressure systems
  13. Tropical and Extra-tropical Cyclones
    • Formation and characteristics of tropical cyclones
    • Differences between tropical and extra-tropical cyclones
  14. Thunderstorms and Tornadoes
    • Formation of thunderstorms and tornadoes
    • Characteristics and associated hazards
  15. Ocean Currents and Atmospheric Circulation
    • Influence of ocean currents on atmospheric systems (e.g., Gulf Stream, El Nino)
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