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14 Cards in this Set
- Front
- Back
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Climate
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Long Term
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Weather
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Short term
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75% of what covers the earth
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WATER
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What drives the weather/water cycle?
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Heat from sun
Rising and falling of air masses (warm air expands and rises) (cold air senses and cools, and sinks) Evaporation/Precipitation |
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Relative Humidty
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percentage of moisture in the air compared to the maximum amount it can hold (depends on temp and pressure)
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How can moisture be added to the air?
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Evaporation and Sublimation
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How can moisture be removed from the air?
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Sublimation and Condensation
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Dew Point
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is the temperature to which air must be cooled to become saturated by the water already presented in the air
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Air and relative humidity
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Air 100% humidity is saturated and air with less than 100% is unsaturated
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Notes
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When water vapor condenses on large objects such as leaves, windshields, or airplanes, it will form dew; and when it condenses on microscopic parDcles such as salt, dust, or combusDon by-products (condensaDon nuclei), it will form clouds or fog.
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Notes 1
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To summarize, relaDve humidity can be increased either by lowering the air temperature or by increasing the amount of moisture in the air. If the temperature and dew point spread is small and decreasing, condensaDon is about to occur. If the temperature is above freezing, the weather most likely to develop will be fog or low clouds.
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Ridge
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enlogated area of high pressure
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Trough
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enlogated area of low pressure
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Where do fronts lie?
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Troughs
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