2006-07-15 06:47:10 · 7 answers · asked by john g 1 in Science & Mathematics ➔ Weather
1) Air contains water vapour.
2) The amount of water vapour air can hold is determined by it's temprature.
3) The higher the air temperature, the more water vapour can be held.
4) The lower the temp...the less water vapour can be held.
5) When air cools , it reaches a point in which no more water vapour can be held
6) When this point is reached, the water vapour condenses out as water droplets (either as clouds or dew or condensate on you car)
7) This temperature is known as Dew Point
8) The atmosphere usually cools at 2C / 1000ft so as air rises, it cools until it reaches the Dew Point...and Voila..Clouds.
9) Continue cooling this air and eventually precipitation will form (rain, snow , hail etc)
10) The difference between the Dew Point and the actual amount of water vapour in the atmosphere is known as Relative Humidity
11) There fore when Temp. = Dew Point...100% RH
2006-07-15 09:34:34 · answer #1 · answered by helipilot212 3 · 1⤊ 0⤋
The temperature at which the water vapor in the air condenses into a liquid.
There is water in the air...humidity.
The dewpoint works along with the relative humidity.
A high humidity means that the dew point is closer and closer to the current temp (or why you feel all sticky). If the humidity is 100%, then the dewpoint will be equal to the current temp...and if you are standing there, you will be covered in water vapor.
Hope that helps.
2006-07-15 13:55:56 · answer #2 · answered by jkk109 4 · 0⤊ 0⤋
The warmer air is, the more water vapour it can hold. If it's holding all it can and the temperature drops, the water molecules sort of get squeezed out of the air and deposit out on stuff, where they attract each other to form droplets - dew
2006-07-15 13:54:36 · answer #3 · answered by Skeff 6 · 0⤊ 0⤋
Temperature at which The first droplet of liquid or condensate forms from a gas phase,normally it happens when u r cooling the gas. its opposite of bubble point.practical example is formation of moisture in ur sun glass when u come out of AC room to hot area outside
2006-07-15 14:00:24 · answer #4 · answered by ramg 2 · 0⤊ 0⤋
The temperature in which water in the air condenses on a surface
2006-07-15 13:50:30 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The temperature at which dew begins to form. It varies with the humidity and temperature of the atmosphere.
2006-07-15 13:50:26 · answer #6 · answered by rrrevils 6 · 0⤊ 0⤋
Dew point is the temperature at which the moisture in the atmosphere becomes visable, ie fog or cloud.
2006-07-15 14:01:11 · answer #7 · answered by Anonymous · 0⤊ 0⤋