Water Cycle & Precipitation Flashcards
Hydrological Cycle
Is the movement of water among the great global reservoirs
states of water
- A change of state from solid to liquid or liquid to gas absorbs latent heat from the surroundings which means latent heat is released when clouds form and absorbed when water evaporates from the planets surface
Evaporations is associated with…
Net radiation energy
Condensation releases…
Energy
Humidity
Is a measure of the water vapour in the air
- The max quantity of moisture that air can hold increases with air temperature - warm air holds more moisture than cool air
Dew point temperature
Is the temperature at which a mass of air holds its maximum capacity of water vapour
Adiabatic Processes
- Is a change in temperature within a gas that occurs only as a result of change in pressure
Why is the adiabatic process important in studying weather and the motion of air?
Because the atmospheric pressure decreases with altitude, if you lift a parcel of air away from the surface, the pressure in the parcel decreases
Condensation occurs depending on…
Dew point temperatures, and the need for water droplets to form on a solid surface
Clouds
Are composed of water droplets and ice crystals.
- They also contain tiny supercooled water droplets
What do clouds require?
Microscopic particles known as cloud condensation nuclei
High clouds
Cirro
Middle clouds
Alto
Low clouds
strato/stratus
Clouds with vertical development
Cumu