Atmospheric movements We learned that energy is transferred from the Sun to the Earth creating convection currents. But, what type of currents???

Atmospheric movements The sun heats the Earth unevenly. Creating hot & cold convection currents: Atmospheric convection. Oceanic convection.

Atmospheric convection Creates: Jet streams: high, fast moving currents of air. Global winds: winds that move across the entire planet. Local winds: low blowing winds that move across a small areas.

Jet Streams

Global Winds Global winds are affected by their latitude and the Coriolis Effect. In the tropics winds blow from the east to the west. In more temperate areas, the winds blow from the west to the east. Near the poles the winds blow from the east to the west. Tradewinds Westerlies Polar Easterlies

Oceanic convection Creates: Deep ocean currents: fast moving currents of water. Gyres: a large system of rotating ocean currents caused by wind and the Earth’s rotation. Gulf stream: a powerful, warm, and fast Atlantic ocean current.

Deep ocean currents

DeepOcean Currents Deep Ocean Currents Deep cold currents move water toward the equator. Cold water rises to replace warm water leaving. Warm water travels near the surface toward polar regions. Warm water replaces cold water.

Gyres A circular system of ocean currents rotating clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere; vortex.

Gulf stream A warm ocean current carrying heat north along the Atlantic ocean. Affects the climate of America and both northern and western Europe.

Global Forces Coriolis effect: deflection of wind and ocean currents due to the rotation of the earth. Continental deflection: deflection of wind and ocean currents due to continents (land). Deflection: to bend or turn.

Equator Earth’s Rotation Global Forces Transparency Global Winds Deep Ocean Currents

Equator Earth’s Rotation Continental Deflection Coriolis Effect Global Forces Transparency Global Winds

Any Questions?