Flashcards in Lecture 6 Deck (33)
What percentage of the earths water is fresh?
What are four properties of water?
High specific heat capacity
Ice is less dense then water
True or false
Most of the hydrological process occurs over the ocean
What percentage of solar radiation is used for evaporation and condensation? Latent heat exchange
Ground water and glacier systems are a source of ....
Both ground water and glacial stores water _________.
Solid or liquid water that forms under saturated conditions and falls to earth
True or false
Most clouds produce rain
What is dew point?
When a cloud has reached 100% saturation
What is the dry adiabetic lapse rate?
-10 degrees Celsius per km
What percentage of water covers the earths planet?
What is relative humidity?
The amount of humidity in the air.
What percent relative humidity will be required to achieve dew point?
What is Orographic uplift?
Air being forced to rise over elevated land or mountain
What is adiabetic lapse rate?
The change in temperature of air with altitude without the addition or removal of heat.
What is the difference between the dry adiabetic lapse rate (DALR) and the moist adiabetic lapse rate (MALR).
Moisture content of the air
Dry is -10degC/km
Moist is -6degC/km
What is the environmental lapse rate (ELR)?
When does condensation occur?
At dew point temperature
What side of a mountain will have more saturated clouds?
What phenomena does the leeward side of a mountain experience?
Rain shadow effect
What does descending air from the atmosphere do?
Warm and condense due to gravity/atmospheric pressure.
What is frontal precipitation?
Precipitation formed by movement of different air masses.
_______ air rises over ______.
What type of front will have a steep adiabetic lapse rate?
Define convergent instability.
Air masses merging causing lifting over short distances
Define convective instability.
Unequal surface heating causes localized instability and a rise of air masses followed by cooling and condensing.
What are the 6 forms of precipitation?
Both freezing rain an sleet require a _______ inversion.
Where is most precipitation deposited?
Around the equator