Related Words

Air Mass: An extensive body of air throughout which the horizontal temperature and moisture characteristics are similar.

Subtropical Air: An air mass that forms over the subtropical region. The air is typically warm with a high moisture content due to the low evaporative process.

Air Mass Thunderstorm: A thunderstorm that is produced by convection within an unstable air mass through an instability mechanism. Such thunderstorms normally occur within a tropical or warm, moist air mass during . . . View Full Definition

Polar Air Mass: An air mass that forms over a high latitude region. Continental polar air (cP) is formed over cold surface regions and is typically very stable with low moisture. Maritime polar air (mP), pr . . . View Full Definition

Tropical Air Mass: An air mass that forms in the tropics or subtropics over the low latitudes. Maritime tropical air is produced over oceans and is warm and humid, while continental tropical air is formed over . . . View Full Definition

Arctic Air Mass: An air mass that develops around the Arctic, it is characterized by being cold from surface to great heights. The boundary of this air mass is often defined by the Arctic front, a semi-perma . . . View Full Definition

Air Speed Indicator: An instrument or device that measures the air speed of an aircraft through an air mass, but not its ground speed.

Continental Air Mass: An air mass with continental characteristics. It is a secondary characteristic of an air mass classification, signified by the small 'c' before the primary characteristic, which is based on . . . View Full Definition

Airspeed Indicator: An instrument or device that measures the airspeed of an aircraft through an air mass but not its groundspeed.

Maritime Air Mass: An air mass influenced by the sea. It is a secondary characteristic of an air mass classification, signified by the small 'm' before the primary characteristic, which is based on source regi . . . View Full Definition