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11 Cards in this Set
- Front
- Back
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What are three factors for Austin being in a flash flood alley?
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1) Close to water source-Gulf of Mexico
2) Close to drier air from West Texas 3) Topography-Hill Country |
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What makes the wind blow?
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Difference in air pressure, blows from high pressure to low pressure
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Does it get colder or warmer as you go up in the atmosphere?
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Colder
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Does hot air rise or fall?
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Rise because of lower density
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How does convection relate to the air?
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Sun heats the ground, which in turn heats the air and makes it rise.
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How do water droplets form in the atmosphere?
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Warm water vapor rises, cools, and condenses into "droplets" forming clouds/raindrops/snow/ice
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Why does water vapor drop?
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Their weight is too heavy
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What three mechanisms cause rain?
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Simple convection
Front lifting Orographic effects |
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Simple Convection
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Warm air rises
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Frontal Lift
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Less dense warm air rises over denser cold air, causing clouds to form as the warm air cools and condenses
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Orographic Effects
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Landscape topography forces air upwards, where the air cools, condenses, and rains
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