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Nov 22, 2022 · November 22, 2022 by David Ryan. The volume of Earth’s atmosphere is estimated to be around 5140 trillion tonnes. This makes the atmosphere much larger than the planet’s surface. Note that the figure can only be estimated, as the atmosphere is constantly changing due to weather patterns and other natural phenomena.
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This is sometimes referred to as a unit of standard atmospheres (atm). Total atmospheric mass is 5.1480×10 18 kg (1.135×10 19 lb), [41] about 2.5% less than would be inferred from the average sea level pressure and Earth's area of 51007.2 megahectares, this portion being displaced by Earth's mountainous terrain.
The pull of gravity is stronger closer to the center at sea level. Air is denser at sea level where the gravitational pull is greater.Gases at sea level are also compressed by the weight of the atmosphere above them. The force of the air weighing down over a unit of area is known as its atmospheric pressure.
Terrestrial Atmosphere Surface pressure: 1014 mb Surface density: 1.217 kg/m 3 Scale height: 8.5 km Total mass of atmosphere: 5.1 x 10 18 kg Total mass of hydrosphere: 1.4 x 10 21 kg Average temperature: 288 K (15 C) Diurnal temperature range: 283 K to 293 K (10 to 20 C) Wind speeds: 0 to 100 m/s Mean molecular weight: 28.97 Atmospheric composition (by volume, dry air): Major : 78.08% Nitrogen ...
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Oct 18, 2021 · To study the makeup of the atmosphere, scientists collect some air in a container and then shine what looks like a laser through the sample. When measuring the heat-trapping greenhouse gases that are causing climate change, such as carbon dioxide and methane, the "laser's" beam is made of infrared light, which has a slightly longer wavelength ...
May 14, 2024 · That is essentially what the Earth’s atmosphere is like: layers upon layers of gas surrounding the Earth, working to protect the planet. We asked Rei Ueyama, an atmospheric scientist at NASA Ames Research Center, to explain a little bit more about the function and importance of our atmosphere. Ueyama is part of the Atmospheric Science Branch ...
Earth - Atmosphere, Climate, Ozone: Earth is surrounded by a relatively thin atmosphere (commonly called air) consisting of a mixture of gases, primarily molecular nitrogen (78 percent) and molecular oxygen (21 percent). Also present are much smaller amounts of gases such as argon (nearly 1 percent), water vapour (averaging 1 percent but highly variable in time and location), carbon dioxide (0 ...
