Water Flashcards
What are the three phases of water in the atmosphere?
Vapour, Liquid, Solid
What is the difference between the three phases of water in the atmosphere?
The amount of energy and motion of water molecules
What is the opposite of Evaporation?
Condensation
What is the opposite of Sublimation?
Deposition
What is the Hydrological cycle?
Circulation of water via the atmosphere
How do you calculate specific humidity?
Mass of water vapour/ total mass of air
What happens to a parcel of airs specific humidity as it moves along?
It preserves it’s specific humidity
What is water vapour pressure?
A measure of the amount of water vapour in the atmosphere is the pressure that the water molecules alone exert
What is saturation vapour pressure?
The maximum vapour pressure of water at a given temperature
What is the most common measurement of humidity and how do you calculate it?
Relative humidity=(actual vapour pressure/ saturation vapour pressure)*100
What is the dew point?
The temperature to which a packet of air would have to be cooled for water vapour saturation to occur
What is the difference between air temperature and dew point a measure of?
The relative humidity of air, the larger the difference the smaller the relative humidity
