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Absolute Humidity
Absolute Humidity
Absolute humidity is the mass of water vapour in a given volume of air, expressed as:
Absolute humidity = mass of water vapour/volume of air
Normally expressed as grams of water vapor in a cubic meter of air it represents the water vapor density in the parcel. However, because the volume of an air parcel changes as it rises or desends, its absolute humidity changes, despite the vapor content staying the same. It is because of this that absolute humidity is not very often used in atmospheric studies.
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