AD - Atmospheric Disturbances 1 & 2 Flashcards
What are Air Masses?
& 3 Characteristics?
A Large body of air that has relatively uniform properties in the horizontal dimension and moves as an entity.
Large, Horizontally Uniform, Moves as a Unit
What is Cyclogensis?
SWOOD?
The creation of a midlatitude cyclone
Stationary, Wave, Open, Occluded, Dissipating (SWOOD)
What are Source Regions?
Regions that are particularly well suited to generate air masses
Forms at Uniform Surface & High Pressure
5 Types of Air Masses
w/ Acronyms
A, cP, mP, cT, mT, E
Arctic, c = Continental, m = Maritime, T = Tropical, P = Polar, Equator
What are Fronts?
& 4 Types?
The thin boundary area between colliding air masses
Stationary, Warm, Cold, Occluded
What is a Midlatitude Cylcone?
What is a Cold Front?
Symbol, Weather, & Precipitation?
A Front of Cold Air
(Blue Triangles), Violent, High-Itensity
What is a Warm Front?
Symbol, Weather, & Precipitation?
A front of Warm Air
(Half-Circles), Gradual & Light Precipitation, Low-Itensity, Widespread
What is an Occluded Front?
A cold air mass overtakes a warm air mass
What is a Stationary Front?
Symbol, Weather, & Precipitation
Neither air mass is advancing on the other
Typical in mT & cP, Stationary Movement, Prolonged Cloud Cover