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What is an air mass? (2)
An immense body of air, usually a thousand miles or more across and several kilometers thick.
Usually has a homogenous temperature and RH at any given altitude.
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What are the two classifications for air masses?
- 1. Moisture (m - maritime , c - continental)
- 2. Temperature/ latitude
- (A - Arctic, P - polar, T - tropical , E - Equitorial , AA - Antarctic)
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Name the air masses that effect North America. Which air mass appears in summer but not winter and vice versa?
- Maritime polar - mP
- Continental polar - cP
- Maritime tropical - mT
- Continental tropical - cT
- Continental Arctic - cA
- .cT only in summer
- .cA only in winter
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