Term
| What is the most important gas in the atmosphere ? |
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Definition
condensation-when gas or vapor turns into a liquid
evaporation-from a liquid to a vapor
sublimation-change directly from the solid to the gaseous state without becoming liquid.
freezing-to change from a liquid directly to a solid |
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Term
| what is relative humidity ? |
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Definition
| The amount of water vapor present in air expressed as a percentage of the amount needed for saturation at the same temperature. |
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Definition
| The atmospheric temperature (varying according to pressure and humidity) below which water droplets begin to condense and dew can form. |
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orographic lifting- occurs when an air mass is forced from a low elevation to a higher elevation
frontal wedging-The forced lifting of warm, less dense air over colder air in the vicinity of a front
localized convective lifting-Unequal surface heating that causes localized pockets of air (thermals) to rise because of their buoyancy.. |
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Definition
| The boundary between two air masses that have different temperatures or humidity |
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Definition
| air that does not possess a tendency to rise. It is denser than the air above it, |
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| how do we measure air stability ? |
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Definition
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