Global atmospheric circulation

What is wind?

• Large scale movement of air caused by differences in air pressure

• Large scale movement of CO2 caused by differences in air pressure

• Large scale movement of air caused by differences in temperature

• Large scale movement of temperature caused by differences in air pressure

Winds move from...

• high pressure to low pressure

• low pressure to high pressure

Warm air...

• sinks

• rises

Cold air ...

• sinks

• rises

What weather is caused by low pressure?

• Clouds and rain

• Clear skies

What are trade winds?

• Surface winds blowing towards the equator

• Atmospheric winds

• Winds blowing away from the equator

• Low pressure winds

Surface winds blowing towards the poles are called ...

• westerlies

• easterlies

• southerlies

• northerlies

The Coriolis Effect is caused by

• Earth rotating around the sun
• Earth rotating on its axis
• The tides
• Gravity

Most of the sun's energy hits the Earth at the...

• Tropic of Cancer

• Arctic Circle

• Tropic of Capricorn

• Equator

At which 2 latitudes does air rise

• 0°

• 30°

• 60°

• 90°