Table of Contents
- 1 What do we call a large region of air that is similar to the area in which it formed?
- 2 What is a large body of air with the same temperature and moisture throughout called?
- 3 What is the term for the area that two different air masses meet?
- 4 What do arctic air masses and polar air masses have in common?
- 5 Which is the place where the air pressure is high?
- 6 What makes up the majority of the air in the atmosphere?
- 7 How much pressure is at the bottom of the atmosphere?
What do we call a large region of air that is similar to the area in which it formed?
Air Masses: uniform bodies of air. An air mass is a large body of air that has similar temperature and moisture properties throughout. The best source regions for air masses are large flat areas where air can be stagnant long enough to take on the characteristics of the surface below.
What is a large body of air with the same temperature and moisture throughout called?
An air mass is a large body of air with generally uniform temperature and humidity. The area over which an air mass originates is what provides its characteristics.
What is air mass similar to?
An air mass is a large mass of air that has similar characteristics of temperature and humidity within it. An air mass acquires these characteristics above an area of land or water known as its source region.
What is the term for the area that two different air masses meet?
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.
What do arctic air masses and polar air masses have in common?
Arctic air masses form in the Arctic region and are very cold. Polar air masses take shape in high-latitude regions and are cold. Equatorial air masses develop near the Equator, and are warm. Air masses are also identified based on whether they form over land or over water.
What are the areas called where air masses develop?
Air masses form over large surfaces with uniform temperatures and humidity, called source regions.
Which is the place where the air pressure is high?
Places where the air pressure is high, are called high pressure systems. A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet.
What makes up the majority of the air in the atmosphere?
By mole fraction (i.e., by number of molecules), dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.
What kind of air is in the stratosphere?
High mountains such as Mount Everest (8,848 meters, or 29,035 feet), in Nepal and China, are littered with empty oxygen canisters that climbers discard when they are used up. High in the stratosphere, a layer of the Earth’s atmosphere, is a special air molecule called ozone.
How much pressure is at the bottom of the atmosphere?
We live at the bottom of the atmosphere, and the weight of all the air above us is called air pressure. Above every square inch on the surface of the Earth is 14.7 pounds of air. That means air exerts 14.7 pounds per square inch (psi) of pressure at Earth’s surface.