Atmospheric Moisture Flashcards
What is heat energy is absorbed or released in the phase change known as?
Latent heat
What is sensible heat?
Energy added or removed that results in a temperature rise/decline in the system
What is evaporation? Is latent heat released or absorbed during this process?
- Liquid changing state to a gas
- Latent heat is absorbed, making surrounding atmosphere cooler.
What is condensation ? Is latent heat released or absorbed during this process?
- Water changing state from gas to liquid.
- Latent heat is released, making surroundings warmer
What are sublimation and deposition?
- Sublimation is phase change from solid to gas.
- Deposition is phase change from gas to solid
What are the 6 stages in teh water cycle?
- Evaporation
- Condensation
- Precipitation
- Accumulation
- Surface Runoff
- Infiltration
What is relative humidity?
Expressed as a percentage, the actual water vapor content of a sample of air compared to the maximum it could hold at its temperature.
What is the relative humidity of a parcel of air that is saturated?
100%
What instrument is used to measure relative humidity?
- Psychrometer
- Has a dry bulb and wet bulb thermometer that uses evaporative cooling to determine humidity.
What is the dew point?
Temperature at which the air is saturated with water vapour.
