Wind Systems Grade 8 Earth Science

Wind Movement of air from an area of high pressure to an area of low pressure Winds are named by their direction of origin

Wind Systems Series of Global Winds created by Convection Currents and the Coriolis Effect

Global Winds Doldrums Equator Doldrums

Global Winds Caused by Convection Cycles

Coriolis Effect The Earth is spinning on its axis once every 24 hours. So when the cold dense air come down from the convection cycle the appear to “bend”

Doldrums Windless zone at the equator

Global Winds Doldrums Equator Doldrums

Trade Winds Winds used to bring the “Trade” from England to America

Global Winds Doldrums Equator Doldrums

Prevailing Westerlies Winds used when sailing back to England from America Winds that are responsible for most of our weather

Global Winds Doldrums Equator Doldrums

Polar Easterlies Winds at the Poles

Global Winds Doldrums Equator Doldrums

Jet Streams The “Rivers of the Sky” Narrow belts of wind located in the atmosphere Greatly affect the movement of Air Masses