Topography (Climate). Regional: 100’s of kilometers Chinook winds Mountain waves and resulting clouds Mesoscale: 1 to 10’s of kilometers Mountain-valley system of winds Local Scale: meters to kms. Flow over mountains and through mountain passes. why is it sometimes very windy:
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Low pressure on leeward side
Formed on downwind
side (lee side)
over Mt. Erebus
Re-circulating air on lee side of mountain
Can extend to ground: fatal for aircraft
Annual snow accumulation about 15 meters
because of rotor effect
+45 degrees F in 2 minutes from Chinook wind!
Heats up along
slopes. Less dense