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Air Masses & Fronts
terms for quiz on Air Masses and Front
Question | Answer |
---|---|
air mass | large body of air with similar temperatures and humidity |
source region | area where an air mass forms |
weather | condition of the atmosphere at a particular time and place |
maritime tropical | wet, warm air mass |
maritme polar | wet, cold air mass |
continental tropical | dry, warm air mass |
continental polar | dry, cold air mass |
Gulf of Mexico | source region for a maritme tropical air mass |
Canada or Alaska | source region for a continental polar air mass |
Sahara Desert | source region for a continental tropical air mass |
North Atlantic Ocean | source region for a maritime polar air mass |
front | place where two or more air masses meet |
cold front | occurs when a cold air mass 'pushes" a warm air mass out of an area |
warm front | occurs when a warm air mass "pushes" a cold air mass out of an area |
blue triangles | symbol for a cold front |
red half-circles | symbol for a warm front |
red half-circles and blue triangles on opposite sides of a line | symbol for a stationary front |
red half-circles and blue triangles on the same side of a line | symbol for an occluded front |
stationary front | occurs when a cold air mass and a warm air mass meets and neither one moves |
occluded front | occurs when a warm air mass is sandwiched between two cold air masses |
light rain or showers | type of precipitation found in a warm front |
heavy rain or thunderstorms | type of precipitation found in a cold front |
light rain followed by heavier rain | type of precipitation found in an occluded front |
rain for a long period of time | type of precipitation found in a stationary front |