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Dew Point.
dew point
The water will condense forming dew.
When air high above the earth' surface is cooled below the dew point it is likely to form?
Dew forms when the air just above the ground is cooled to its dew point (a temperature at which the water dissolved in the air comes out of the air). The air above the ground is cooled because the ground radiates heat into space. If there are clouds overhead the clouds reflect the heat back to the ground so it does not cool and o dew forms. If it is windy then the air just above the ground keeps on getting mixed with the air higher up and the air does not cooled to the dew point and no dew forms. Thus to form dew you need a still clear night.
The temperature to which air must be cooled to reach saturation is called the dew point.
clouds form when the air is cooled to its dew point
Dew Point.
dew point
The dew point is the varying temperature at which atmospheric humidity condenses. If the air temperature drops below the dew point, dew and condensation form.
Dew point
When air high above the earth' surface is cooled below the dew point it is likely to form?
When air high above the earth' surface is cooled below the dew point it is likely to form?
The water will condense forming dew.
When a paracel of air is cooled to the temperature at which it is saturated, it has reached its dew point.
The dew point is a saturation point, but a saturation point may not be a dew point. That is, a saturation point has a broader definition -- more general application. Sometimes you can interchange the terms without confusing the reader. =================================
Condensation