Chapter - 4 Humidity and Atmospheric Stability

Question 1

What happens in Relative Humidity?

Answer 1

Warmer air = greater maximum water vapor possible
Cooler air = lesser maximum water vapor possible

EX:
20% relative humidity = 5 PM
50% relative humidity = 11AM
100% relative humidity = 5 AM

Question 2

What are the adiabatic Processes?

Answer 2

Dry adiabatic rate (DAR)
Moist Adiabatic rate (MAR)
Stable and unstable atmospheric conditions

Question 3

What is Buoyancy?

Answer 3

The ability or tendency to float in water or air or some other fluid

Question 4

If there is lower air pressure…

Answer 4

There is lower density and a buoyancy force for the air parcel from earth’s surface

Question 5

If there is higher air pressure…

Answer 5

There is higher density and a gravitational force to the air parcel from earth’s surface

Question 6

What is the cooling by expansion through adiabatic process?

Answer 6

Air parcel cools internally as it expands under lower air pressure from Earth’s surface