Global Atmospheric Circulation
Document Details
Uploaded by FoolproofTopaz
Jefferson
Tags
Summary
The document explains global atmospheric circulation and how it creates various weather patterns through interconnected cells. It details the characteristics of the Hadley, Ferrel, and Polar cells, including temperature, wind patterns, and precipitation. This information is relevant for understanding global climate.
Full Transcript
Global atmospheric circulation creates distinct weather patterns through three interconnected cells. 0-30° Latitude (Hadley Cell) Intense sunlight at the equator heats air, causing it to rise and create: \- Daily thunderstorms in tropical rainforests \- Consistent warm temperatures (25-30°C year...
Global atmospheric circulation creates distinct weather patterns through three interconnected cells. 0-30° Latitude (Hadley Cell) Intense sunlight at the equator heats air, causing it to rise and create: \- Daily thunderstorms in tropical rainforests \- Consistent warm temperatures (25-30°C year-round) \- Trade winds blowing westward toward the equator At 30° latitude, this cooled air sinks back down, creating: \- Permanent high pressure systems \- World\'s major deserts (Sahara, Arabian, Australian) \- Minimal cloud formation and rainfall 30-60° Latitude (Ferrel Cell) The collision of polar and tropical air masses creates: \- Prevailing westerly winds \- Frequent weather changes (sunny to stormy in hours) \- Major storm systems like cyclones \- Distinct seasons with temperature variations \- Jet stream guiding weather patterns 60-90° Latitude (Polar Cell) Dense cold air sinks at the poles causing: \- Extreme low temperatures (-50°C common) \- Polar night/noon effects (6-month darkness/light) \- Shallow precipitation (snowfall \
