Water cycle
Name the 4 processes of the water cycle.
Evaporation, condensation, precipitation, infiltration/runoff
What is air pressure?
the amount of force pressing down on an area.
What is relative humidity?
The amount of water vapor (gas) in the air relative to other stuff. Measured in percent.
Explain a cold front
Cold air runs into warm air and pushes warm air straight up caused blizzard/thunderstorms
Explain the process of evaporation
Liquid water is heated and turned to water vapor (gas).
What causes our movement of air flow?
density
What is dew point?
The temperature at which water vapor cools and condenses.
Explain a warm front.
Warm air runs into cold air and gently gets pushed up causing light precipitation.
Explain the process of condensation.
Water vapor (gas) is cooled and turns into a liquid.
Describe the direction of airflow around high and low pressure centers.
High moves outward, low moves inward.
Which can hold more water vapor (gas), Warm or cold air?
Warm air
What weather does high and low pressure bring?
High = happy
Low = lousy
What is cloud coverage?
The percentage of sky covered in clouds.
Explain the abbreviation rules for pressure on a station model.
0-4: add a 10 infront, 5-9 add a 9 infront then add decimal in 10s place.
Describe the relationship between evaporation and relative humidity.
the lower the relative humidity the higher the rate of evaporation.
Provide an example of naming an air mass.
cP, cA, cT mP, mT
Explain the formation of clouds.
The water vapor (gas) rises, expands and cools. Turns into a liquid, droplets stick to dust particles and form the cloud, when it gets to heavy, we get precipitation.
As air temperature increases, what happens to density and pressure?
Density and pressure decrease.
100% (95-99%) The atmosphere has reached it's capacity of water vapor. The clouds cannot hold anymore.
Explain what happens at a stationary front.
warm and cold air collide in opposite directions and neither air mass advances.