Weather Factors

Winds

Chapter 2

Section 3

Wind

• Cause by differences in air pressure– Air moves…

• High Low

Wind Vane

• Measures wind direction

Anemometer

• Measures wind speed

Wind Chill Factor

• The temperature that it “feels like” due to wind– Removes buffer layer from skin

Local Winds

• Due to uneven heating of the earth’s surface– Warm air rises

Sea Breeze

• Cooler over ocean• Warmer on land

• Summer Monsoon

Land Breeze

• Warmer over water• Cooler on land

• Winter Monsoon

Global Convection Currents

• Warm equatorial air rises

• Cool polar air sinks

Coriolis Effect

• Equator move fast • Poles don’t move

Global Wind Belts

• Doldrums• Horse Latitudes• Trade Winds