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Coriolis Effect

Coriolis Effect. Coriolis Effect – Earth rotates west to east Moving particles deflected away from equator Caused by rotation. Northern Hemisphere – objects turn RIGHT Southern Hemisphere – objects turn LEFT. Equator. N. Pole. Global Winds. Wind systems

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Coriolis Effect

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  1. Coriolis Effect

  2. Coriolis Effect – • Earth rotates west to east • Moving particles deflected away from equator • Caused by rotation Northern Hemisphere – objects turn RIGHT Southern Hemisphere – objects turn LEFT Equator N. Pole

  3. Global Winds • Wind systems • Trade Winds: 30°N & S to equator • Air sinks and warms • Moves towards equator (westerly) • Rises towards 30°N & S • High pressure

  4. Polar Easterlies: 60°N & S to poles • Moves NE to SW (northern hemisphere) • Moves SE to NW (southern hemisphere) • Colder air • Prevailing Westerlies: 30° - 60° N & S • Moves towards poles • Blows west to east • Responsible for weather across N. America

  5. InterTropical Convergence Zone • ITCZ • Trade winds from northern and southern hemisphere converge • Air is forced up • Creates low pressure system • Near equator • Clouds, showers • Called doldrums

  6. Jet Streams • Narrow bands of fast, high altitude westerly winds • Two types: • Polar jet stream: separates polar easterlies from prevailing westerlies • Sub-tropical jet stream: trade winds meet prevailing westerlies

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