Is there any case the dewpoint will be higher than the temperature?
2007-02-08 23:56:13 · 4 answers · asked by nov666 2 in Science & Mathematics ➔ Weather
The temperature at which dew is formed is termed as the dew point and it is when the air is 100% saturated with water vapor. At this situation, theoretically the air temperature = the dew point. It is so in practicality too. However, Due to certain conditions. supersaturation of the air may take place in isolated situations and more water vapor is deposited in the form of water particles or dew. In this case too, temperature=dew point.
2007-02-16 18:30:43 · answer #1 · answered by diamondpinkrose 1 · 0⤊ 0⤋
Perhaps. As the temperature (of a room?) is slowly decreased, the relative humidity (the amount of moisture in the air relative to the amount possible with unlimited evaporation) increases finally to 100% and the dew point temperature and room temperature will be identical. Any further cooling will cause some condensation to maintain 100% relative humidity. However, for moisture to condense easily there must be nucleation points such as dust. If the room air is dust free and cooling is sudden, the room temperature may drop below the dew point temperature and the moisture will become supersaturated. Condensation may occur only on the walls, ceiling and floor. Of course, if an air conditioner is used , moisture may condense on its cooling coils, etc. Supersaturation may also occur in clouds.
2007-02-09 08:57:20 · answer #2 · answered by Kes 7 · 0⤊ 0⤋
Yes, When there is dew/frost on outside the dew point is higher than the temperature.
The dew point is the temperature at which water vapor in the air condenses, and when the temperature drops below the dew point you get either dew of frost depending on the temperature.
Relative humidity, a related term, is a measure of water vapor saturation in the air which depends greatly on temperature. The warmer the air the more water vapor is needed to reach the saturation point. As the temperature falls towards the dew point, the relative humidity will approach 100%, at the dew point water vapor condenses.
2007-02-09 08:29:46 · answer #3 · answered by Brian K² 6 · 0⤊ 0⤋
no its not possible. If it does ever happen, their will be a big deal of fog in the area.
2007-02-09 22:09:28 · answer #4 · answered by Justin 6 · 0⤊ 0⤋