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The atmosphere has a mass of about 5.15 × 10 18 kg, [3] three quarters of which is within about 11 km (6.8 mi; 36,000 ft) of the surface. The atmosphere becomes thinner with increasing altitude, with no definite boundary between the atmosphere and outer space.
The Earth's atmosphere plays an essential role in maintaining life. The main layers within the atmosphere are the troposphere, stratosphere, mesophere and thermosphere. The thickness of the atmosphere, depending upon the definition, is between 100 and 10,000 kilometers.
The Earth's atmosphere is an extremely thin sheet of air extending from the surface of the Earth to the edge of space. The Earth is a sphere with a roughly 8000 mile diameter; the thickness of the atmosphere is about 60 miles.
Since about 99.998% of the mass of the atmosphere is at an altitude of 85 kilometers or less, that usage is not unreasonable. The remaining 0.002% of the atmosphere's mass gets thinner and thinner with increasing altitude, but the atmosphere arguably continues to at least half of the way to the Moon.
Between about 53 miles (85 km) and 375 miles (600 km) lies the thermosphere, known as the upper atmosphere. While still extremely thin, the gases of the thermosphere become increasingly denser as one descends toward the Earth.
Earth's atmosphere extends from the surface to a height of around 10,000 km [6,213 miles]. Most of the air mass is confined to the lower part of the atmosphere and the higher the thinner of...
The thickness of the Earth's atmosphere is not a definite number, but is estimated to be about 1000 km. The reason that there is no definite number is because there is no set boundary where the atmosphere ends.
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 ...
However, by observing changes in the density of gases surrounding the Earth, it can be determined that the average thickness of the atmosphere, denoted as d’, ranges from 350 to 800 km, depending on solar activity.
The Earth's atmosphere is an extremely thin sheet of air extending from the surface of the Earth to the edge of space. If the Earth were the size of a basketball, a tightly held pillowcase would represent the thickness of the atmosphere.