The critical temperature at which air becomes saturated.
Frontal rainfall
Any form in which water falls from the sky.
The loss of water from vegetation.
Hygroscopic nuclei
The loss of moisture from water surfaces and the soil.
Convectional rainfall
Transpiration
A solid surface such as dust, over which condensation occurs.
When water vapour changes back to water droplets.
Evaporation
A type of rainfall that occurs when air rises as it is heated by the hot ground below.
The boundary between two air masses.
Precipitation
Water cycle
A type of rainfall that occurs when warm air meets a mountain.
Relief rainfall
A type of rainfall that occurs when a warm airmass meets a cold airmass.
Condensation
Dew point
Front
The movement of water between air, sea and land.
