Causes Of Precipitation Flashcards
1
Q
What is direct cause of precipitation
A
Condensation
2
Q
When does precipitation occur
A
Air temp reduced past dew point eg warm moist air passes over cold surface on clear night or when heat is radiatiated out into atmosphere leaving ground cool.
Volume of air increases as it rises and expands but no Addition in heat
3
Q
No addition of heat
A
Adiabatic cooling
4
Q
Types of rain
A
Relief - rise I’ve mounts
Frontal - masses of different temp&density meet warm air rises over cool air which is sinking
Convection - warm air rises from hot surfaces on sunny day
