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Air Masses. Large body of air that has similar properties to the part of the Earth’s surface which it develops over. Types of Air Masses. Maritime Polar ( mP ): cool and moist Continental Polar ( cP ): cool and dry Maritime Tropical ( mT ): warm and moist
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Air Masses Large body of air that has similar properties to the part of the Earth’s surface which it develops over.
Types of Air Masses Maritime Polar (mP): cool and moist Continental Polar (cP): cool and dry Maritime Tropical (mT): warm and moist Continental Tropical (cT): hot and dry
What makes an air mass? • Large in size • The same temperature and humidity through out • Move as a single unit
A change in weather is due to the movement of air masses. Moving air masses can change the air pressure HIGHS LOWS Stormy weather • Air has a hard time rising so clouds cannot form easily • Fair weather systems What tool can we use to measure air pressure? - Barometer
Fronts: The boundary between two air masses of different density, moisture or temperature Cold Warm warm air takes the place of cold air • cold air takes the place of warm air
Two cold air masses move towards each other by the surface with a warm air mass moving between them No movement between air masses Stationary Occluded