7-7 What are air masses?
SWBAT: Describe different kinds of air masses.
Air mass: large volume of air with about the same temperature and amount of moisture throughout
Polar air mass: air mass that forms over cold regions
Tropical air mass: air mass that forms over warm regions
• An air mass is affected by the region it covers.
• Air masses that form over land are dry; air masses that form over water are moist.
• Continental polar air masses form over cold land areas; maritime polar air masses form over cold ocean areas.
• Maritime tropical air masses form over water and are warm and moist; continental tropical air masses form over land and are warm and dry.
Air mass: large volume of air with about the same temperature and amount of moisture throughout
Polar air mass: air mass that forms over cold regions
Tropical air mass: air mass that forms over warm regions
• An air mass is affected by the region it covers.
• Air masses that form over land are dry; air masses that form over water are moist.
• Continental polar air masses form over cold land areas; maritime polar air masses form over cold ocean areas.
• Maritime tropical air masses form over water and are warm and moist; continental tropical air masses form over land and are warm and dry.