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The top of the atmosphere is not well defined. Rather, the gases (primarily nitrogen and oxygen) comprising the atmosphere gradually thin the higher one goes. Air pressure is 100 kPa at sea level (14.7 psi) and falls to 50 kPa (7.25 psi) about a mile above sea level. Half the weight of the atmosphere is within the first 3.5 miles (18,000 feet) of sea level. At 15,000 feet (3 miles above sea level) atmospheric pressure drops to 10 kPa (1.5 psi). 90% of the atmosphere is below 52,000 feet (10 miles). There is still enough air to support jet aircraft above 30,000 feet, and high altitude balloons will ascend to over 100,000 feet (nearly 20 miles). At 20 miles above the earth the day time sky turns quite black, and you can see the hazy boundary between air and space.
For most purposes you could say it ranges anywhere from 20 to 100 miles.
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What percent of the atmosphere is above 5.6 kilometers?
The breathable atmosphere only extends to about 7 or 8 kilometers (22,000 to 26,000 feet), and by the top of the stratosphere (50 km) is a near vacuum. The edge of space is commonly defined as 100 km (62 miles or 328,000 feet). The lowest stable satellite orbits are at 160 km (100 miles) above the Earth, but there are still occasional air molecules out as far as 600 km (373 miles).
What are the layers of the atmophere?
The atmosphere is divided into five layers. It is thickest near the surface and thins out with height until it eventually merges with space. The layers from lowest to highest : - The Troposphere (up to 10 km) It's the atmosphere that surrounds us. On top of that comes... - The Stratosphere (10-50 km) Very little oxygen or water vapor. Aircraft fly in the lower stratosphere. This is also where the ozone layer exists. On top of that comes... - The Mesosphere (50-80 km) This is where most meteors burn up, because the density is higher than the outer layers. On top of that comes... - The Thermosphere (80-650 km) Practically a vacuum. Includes the ionosphere (auroras) as well as space station orbits. On top of that comes... - The Exosphere (500-2000 km) The farthest any of Earth's atmosphere exists. Based on charged particles and not necessarily gas molecules, some atmospheric models combine the Exosphere into the Thermosphere, making the outermost layer the Magnetosphere, a vast region where atmospheric ions interact with the solar wind in space.
What is a basal drag?
It is a force that could be contributing or complementing mantle convectional currents in the movements of lithospheric or tectonic plates. This force is generated when there is friction between convectional currents and the lithospheric or tectonic plate that lies above.
Earth's outermost layer is the?
Earths outermost layer is the crust.Actually, the crust is divided into two parts,Sial and Sima.In that way, actually Sial is the outermost layer of the crust,as it lies above the Sima.
What lies along the subtropical jet stream?
High or low pressure lies along the subtropical jet stream, depending on the time of year. The pressure gradient follows the path of the jet stream.
What is free atmosphere?
Free Atmosphere or Free Air is a part of the atmosphere that lies above the Earths frictional influence.
What is mesoshere?
mesosphere is a layer of the atmosphere is the third layer of atmosphere. It lies above the stratosphere.it extends up to the height of 80 km. Meteorites burn up in this layer on entering from the space.
What atmosphere that lies immediately above the layered atmosphere of the solar visual surface?
If you are referring to the Sun's atmosphere, this is called the solar corona.
What is the portion of atmosphere 10-25 miles above the earrth's surface?
tropospere is portion of atmosphere that lies between 10-25 miles
What is the portion of atmosphere 10 25 miles above the earrth's surface?
tropospere is portion of atmosphere that lies between 10-25 miles
What is the definition of stratospere?
The stratosphere is the layer of the Earth's atmosphere which lies between 10 and 50 kilometres above the Earth.
What lies at an altitude of 100 km above the sea level is defined as the boundary between earth's atmosphere and outer space?
Magnetosphere.
What mechanical layer lies above core?
Mesosphere lies above the core.
What is the layer of the earth that lies above the mantle?
The Earth's crust lies above the mantle.
New york city height above sea level?
Oh yes, otherwise NYC would be under water. It lies at the open sea.
What is the layer of the earth that lies above the outer core?
The mantle lies above the outer core of the earth.
What mechanical layer lies above the core?
Mesosphere lies above the core.
