4.2 Patterns of Circulation in the Atmosphere

What causes wind?

• warm air sinking while cold air rises

• uneven heating of Earth's surface

• air movement from high to low pressure

• air movement from low to high pressure

Which instrument measures wind speed?

• Wind vane

• Speedometer

• Rain Gauge

• Anemometer

The movement of air parallel to Earth

• Wind

• Sea Breeze

• Land Breeze

• Jet Stream

A lake breeze is a local wind that blows from an ocean or lake

• wind

• land breeze

• sea breeze

• jet stream

The flow of air from land to a body of water

• Land Breeze

• Sea Breeze

• Coriolis Effect

• Wind

Earth's rotation makes wind curve

• Jet stream

• land breeze

• Coriolis effect

• Wind

High speed winds slightly above Earth's surface

• Wind

• Coriolis Effect

• Jet Stream

• Sea Breeze

Which two factors affect local winds?

• unequal heating of Earth's surface

• water and land

• Coriolis effect

• Earth's rotation