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Question
What is a 'dew point'?
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Solution
In simple terms, the dew point is the temperature at which a given concentration of water vapor
in air will form dew. More
specifically it is a measure of atmospheric moisture. It is the temperature to
which air must be cooled at constant pressure and water content to reach
saturation. A higher dew
point indicates more moisture in the air; a dew point greater than 20 °C
(68 °F) is considered uncomfortable and greater than 22 °C
(72 °F) is considered to be extremely humid.Frost pointis the dew point when temperatures are below freezing.
In simple terms, the dew point is the temperature at which a given concentration of water vapor in air will form dew. More specifically it is a measure of atmospheric moisture. It is the temperature to which air must be cooled at constant pressure and water content to reach saturation. A higher dew point indicates more moisture in the air; a dew point greater than 20 °C (68 °F) is considered uncomfortable and greater than 22 °C (72 °F) is considered to be extremely humid.Frost pointis the dew point when temperatures are below freezing.
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