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air mass |
Also found in: Encyclopedia, Wikipedia, Hutchinson | 0.01 sec. |
air mass n (Earth Sciences / Physical Geography) a large body of air having characteristics of temperature, moisture, and pressure that are approximately uniform horizontally
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| ? Mentioned in | ? References in periodicals archive | ||
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| Thunderstorms cannot "pop
up" or build due to convection and tropical disturbances tend not
to strengthen when one of these air masses is around. When
water vapor condenses inside a thunderstorm, the heat that's
released drives fast-rising air masses that can spawn tornadoes. Saturated air masses funnel up the Hoh before emptying their
pregnant loads on the blockade of mountains at the head of the drainage. |
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