Air Masses - Jet Stream - Pressure Systems

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Presentation transcript:

Air Masses - Jet Stream - Pressure Systems

Air Masses cA - Continental Arctic cP – Continental Polar Continental – air mass forms over land or ice (dry) Maritime – air mass forms over water (moist) Legend cA - Continental Arctic cP – Continental Polar cT –Continental Tropical mP - Maritime Polar mT - Maritime Tropical Air Temperature Very Cold Hot Cold Warm Cool

Summer and Winter Movement of Air Masses Types of Air Masses (4) http://video.about.com/weather/Types-of-Air-Masses.htm Summer and Winter Movement of Air Masses http://www.canadiangeographic.ca/atlas/themes.aspx?id=weather&sub=weather_basics_begins&lang=En

cA cP mP cP mP cT mT

Pressure Systems & Jet Stream Air moves from West to East across Canada. It does shift North or South as can be seen by the baby blue line. (Jet stream) Above the line there is cooler air and below there is warmer air. High Pressure systems have few clouds (air is moving down) Low Pressure systems have more cloud (air is moving upwards) Cooler Warmer

High and Low Pressure (simple diagram) http://www.geogonline.org.uk/images/highandlow.gif

land Dry Cold Winter - moderate Cool - dry Hot Summer Water - moist Comparison Forms over land or water? Moisture Content - Moist - Moderate - Dry Temperature - Cold - Cool - Warm - Hot Strongest - Spring - Summer - Fall - Winter or all Continental Arctic land Dry Cold Winter Continental Polar - moderate Cool Continental Tropical - dry Hot Summer Maritime Polar Water - moist Warm & Cool All Seasons Maritime Tropical Warm

Interactive Climate Diagrams http://educypedia.karadimov.info/education/climateanimations.htm