Humidity
What is Humidity?
The representation of water vapour or moisture in the atmosphere.
What is temperature?
The amount of heat in a given object.
What happens when the temperature reaches dew point?
The air will become more saturated.
What are the seven types of precipitation?
Drizzle, Rain, Hail, Snow Pellets, Snow, Ice Prisms, Ice Pellets
What is Condensation?
The process where gas turns into a liquid.
What are the three main cooling processes?
Radiation Cooling, Advection Cooling, Adiabatic Process
As the relative humidity increases is allows for what?
Clouds to Form
When does freezing rain occur?
When water droplets, which have retained their liquid form in freezing conditions, make contact with an object and freeze.
What is Sublimation?
The process where gas becomes a solid without becoming a liquid.
What is Diurnal Variation?
Solar Radiation in excess during the day and ceasing during the night, which is causes day/night cooling.
What happens when relative humidity increases?
The weight of the air mass also increases.
Snow is the result of what?
Sublimation
What is Dewpoint?
What is Seasonal Variation?
Controlled by the axis of the Earth and it's rotation and orbit around the sun.
How does relative humidity affect the creation of precipitation?
Once the air mass has reached 100 percent relative humidity, any addition of water or drop in temperature will cause precipitation.
This form of precipitation can form with or without clouds. What form of precipitation is this?
Ice Prisms
What is Relative Humidity?
The ratio of actual water vapour in the air to the amount the same amount of air could hold.
What are the four process which assist in getting warm air into higher levels of the atmosphere?
Convection, Advection, Turbulence, Compression
How is it possible for hail or snow to occur in the summer months?
The temperature in the air mass will change with altitude, so water may freeze at higher levels of the air mass.
What is the difference between ice pellets and freezing rain?
Ice pellets freeze before contacting an object while freezing rain freezes after contact.