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Questions and Answers
What defines an air mass?
What defines an air mass?
- A layer of air that is unstable and constantly changing
- A region with significant temperature variation
- A small, localized area of high pressure
- A sizeable body of air with uniform characteristics horizontally (correct)
Which characteristic is NOT commonly associated with an air mass?
Which characteristic is NOT commonly associated with an air mass?
- Consistent temperature
- Uniform humidity
- Stable pressure conditions
- Varying wind patterns across a large region (correct)
Which of the following best describes the spatial extent of an air mass?
Which of the following best describes the spatial extent of an air mass?
- Typically covers many kilometers horizontally (correct)
- Confined to specific weather fronts
- Exclusive to mountainous terrains
- Limited to valleys and low-lying areas
How do air masses primarily acquire their characteristics?
How do air masses primarily acquire their characteristics?
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What is one implication of an air mass having uniform characteristics?
What is one implication of an air mass having uniform characteristics?
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Study Notes
Characteristics of Air Masses
- Defined as a large body of air that has relatively uniform temperature and humidity in the horizontal direction.
- An air mass may cover thousands of square kilometers, influencing weather patterns in its region.
Characteristics NOT Associated with Air Masses
- Local weather phenomena such as thunderstorms are generally not associated with the uniform characteristics of an air mass.
Spatial Extent
- Air masses can extend over vast areas, often spanning several states or countries, showcasing uniform weather conditions.
Acquisition of Characteristics
- Air masses gain their characteristics by interacting with the surface beneath them, acquiring temperature and moisture properties from the land or ocean.
Implications of Uniform Characteristics
- Having uniform characteristics can lead to consistent weather patterns within the area influenced by the air mass, affecting temperature, precipitation, and wind behavior.
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