The Atmosphere - Chapter 2: Stability Flashcards
Air that is heavier due to colder temperature and resists vertical displacement
stable air
Air that is warmer and therefore lighter than the surrounding air would continue to rise until it reached an altitude having the same temperature (think hot air balloon)
unstable air
The stability of the air is determined by examining the temperature of the atmosphere at ____
various heights
_____ prevails when the environmental lapse rate is less than the wet adiabatic rate
Absolute stability
The most stable conditions occur when the temperature in a layer of air ____ with altitude
increases
Temperature inversions are created because the ground and air will ___ more rapidly than the air aloft
cool
When warm air overlies cooler air, it acts as a ___ and prevents appreciable vertical mixing
lid
Air is said to exhibit _________ when the environmental lapse rate is greater than the dry adiabatic rate
absolute instability
Conditional instability happens when moist air has ________ between the dry and wet adiabetic rates
environmental lapse rate
A good indication that the ascending air is unstable is if you have….
cauliflower shaped clouds appearing to grow as if bubbles of hot air are surging upward