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How does temperature affect an air mass?

How does temperature affect an air mass?

When a warmer air mass travels over colder ground, the bottom layer of air cools and, because of its high density, is trapped near the ground. In general, cold air masses tend to flow toward the equator and warm air masses tend to flow toward the poles. This brings heat to cold areas and cools down areas that are warm.

What air masses originate at high latitudes?

Polar (P) air masses originate in high latitudes and are cold. Tropical (T) air masses form in low latitudes and are warm. According to this classification scheme, the four basic types of air masses are continental polar (cP), continental tropical (cT), maritime polar (mP), and maritime tropical (mT).

Do air masses form in mid latitudes?

Air Masses form where there is persistant atmospheric conditions. The middle latitudes are not places generally where air masses form because this is where cold polar and warmer subtropical/tropical air tend to clash.

Which two air masses do a Dryline typically separate?

Dry lines are most commonly found just east of the Rocky Mountains, separating a warm moist air mass to the east from a hot dry air mass to the west.

How does the latitude of a region affect climate?

Latitude affects climate by influencing the intensity of the sun in a region. The angle and duration of the sun’s energy determine surface temperature so that higher latitudes receive less heat, but lower latitudes closer to the equator receive significantly more heat.

How does air mass affect temperature and humidity?

An air mass is a batch of air that has nearly the same temperature and humidity ( Figure below ). An air mass acquires these characteristics above an area of land or water known as its source region. When the air mass sits over a region for several days, or longer, it picks up the distinct temperature and humidity characteristics of that region.

What happens when air masses reach a new region?

When the air mass reaches a new region, it might clash with another air mass that has a different temperature and humidity. This can create a severe storm. Meteorologist s identify air masses according to where they form over the Earth.

How does sunlight arrive at low latitudes and high latitudes?

At low latitudes, sunlight arrives nearly vertically, and it arrives with almost full intensity. At high latitudes, sunlight arrives nearly horizontally, and it thus reaches the Earth’s surface in very diluted form.