What is a moving boundary between two air masses?
When two air masses meet together, the boundary between the two is called a weather front. At a front, the two air masses have different densities, based on temperature, and do not easily mix. One air mass is lifted above the other, creating a low pressure zone.
What is the boundary between one air mass and another called?
Cold air and warm air do not mix easily because they have different densities. Instead, a boundary forms between these air masses. This bounday which separates the two air masses is called a front.
What is the boundary called of a moving air mass?
Where air masses converge, they form boundaries called fronts. Fronts are identified by a change of temperature based upon their motion. With a cold front, a colder air mass is replacing a warmer air mass. A warm front is the opposite – when warm air replaces cold air.
What do we call the boundary between two masses?
When two different air masses meet, the boundary zone between them is called a front.
What are the three main air mass boundaries?
Tropical air masses form in low-latitude areas and are moderately warm. Polar air masses take shape in high-latitude regions and are cold. Equatorial air masses develop near the Equator, and are warm.
What are air masses moved around by?
Air masses are large bodies of air that have similar temperature and humidity. These air masses are moved around the atmosphere by prevailing winds that blow in one direction. At the boundaries between air masses, weather fronts form. Weather fronts cause changes in the weather such as rain, storms and wind.
What is the boundary between two air masses called quizlet?
The boundary between two air masses is called a. Front.
What is the boundary between warm and cold air masses?
Answer and Explanation: A front is the boundary between cold and warm air masses. A front signifies that one air mass is pushing the other out of the way. Cold fronts are fronts preceding a cold air mass. This air mass protrudes under the warm air mass ahead of it.
What happens when two air masses collide?
When two different air masses come into contact, they don’t mix. They push against each other along a line called a front. When a warm air mass meets a cold air mass, the warm air rises since it is lighter. At high altitude it cools, and the water vapor it contains condenses.
What are the 4 types of air masses?
Four major types of air masses influence the weather in North America: maritime tropical, continental tropical, maritime polar, and continental polar. As shown in Figure 1, the characteristics of an air mass depend on the temperatures and moisture content of the region over which the air mass forms.
What is the name of the boundary between warm air and cold air?
The boundary where the hot and cold air masses meet is called the ‘front’. As temperate cyclones are formed on the fronts, they are also known as frontal cyclones.
What is moisture in the air called?
The amount of water vapor in the air is called humidity.