Air masses in free fall

Here are the geog presentation slides, as requested. Pause as needed.

Tricellular model of global air circulation:


Case study - Russia: seasonal variations due to alternating ferrel and polar cells, and impact on human geography



The triceullar model one has quite a bit of physics, sorry bo pian lah. It takes some time to digest (especially the jet stream and rossby waves one).


And... we won ACJC geog quiz the other day. Yeah!