Meteorology Today, Ahrens Chap 4 Flashcards
4 Different ways to measure moisture in the air
- Absolute Humidity
- Specific Humidity
- Actual Vapor Pressure
- Saturation Vapor pressure
What is absolute humidity
mass of water vapor in a fixed
volume of air
What is Specific Humidity
mass of water vapor in a fixed
total mass of air
What is Actual Vapor pressure
amount of water
vapor in terms of the amount of pressure that the water vapor
molecules exert
What is Saturation Vapor pressure
pressure that the water
vapor molecules would exert if the air were saturated with
vapor at a given temperature
Why does July air often have higher dew points in the US
Moist air brought from the Gulf of Mexico
Why is polar air considered dry despite being saturated
Cold temperatures mean the Temperature is constantly around dew point, meaning there is low amounts of vapor in the air
What is wet bulb temperature
the lowest temperature that can be
reached by evaporating water into the air.
