Science 11/12/25 Flashcards
As elevation increases, what happens to pressure
It decreases
Thermometer
meseures temp
Sling psychrometer
meseures dew point temp
Barrometer
meseures pressure
Rain Guadge
Amount of rain
Amometer
Wind speed
wind vane
Direction of wind
What kind of air can hold the most water vapor
warm air (hummitity = warm)
What is saturation
The amount of water vapor that we held
What is dew point temp
The temp the air is when the air is saturated.
As temperature increases humidity ______
Decreases
As temp decreases, humidity _________
Increases
When does condensation happen
When air cools down below dewpoint temp (the air cant hold on to access water vapor) (condensation occurs)
What does condensation happen on
condensation nuclei
what is condensation nuclei
dust particles
Why is the wet bulb always lower then the dry bulb
Because of the cooling effect of evaporation
why does warm air rises and cool air sink?
Warm air has more water vapor, therefore less dense and rises. If the air is moving up, the weight of the air is less (low pressure)
Cool air has less water vapor, therefore making it less dense and sinking. If the air is sinking, then the weight of the air is more (high pressure)
What direction does wind blow
High pressure to low pressure
What is sea breeze?
Occurs during the day, air over land is warmer and air over water is cooler. sea(high) to land (low)
What is land breeze?
occurs during the night- air over land is cooler and air over water is warmer. blows from land(high) to sea(low)
What pressure does participation occur
low pressure(wet)
Clouds form at what pressure
low pressure(humid)
Cold front
- when a cold air mass moves into a region occupied by warm air
- due to its density cold air acts like a snow plow and pushes warm air up
- warm air cools quickly and releases precipitation
- Strong storms but short lived over several hours
Warm front
- When a warm air mass moves into a region occupied by cold air
- due to its density, warm air gradually flows on top of cold air
- warm air cools slowly to a dew point and slowly releases precipitation
– gentle storms but long lived after several days
Occluded front
- When a warm air mass is caught in between two cold air masses
- a combinaiton of a cold front uniting with a warm front
- Wair air squeezed upward and reaches a dewpoint
- String and gentle storms produced over several days
Stationary front
- cold air mass and warm air mass not interacting directly but sliding past one another in opposite directions
- no participation produced
