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Encyclopedia > Thermopause

The Thermopause is the atmospheric boundary of Earth's energy system, located at the top of the thermosphere. Layers of Atmosphere (NOAA) Air redirects here. ... The thermosphere is the layer of the Earths atmosphere directly above the mesosphere and directly below the exosphere. ...


Below this, the atmosphere is defined to be active on the insolation received, due to the increased presence of heavier gases such as monoatomic oxygen. The solar constant is thus expressed at the thermopause. Beyond (above) this, the exosphere describes the thinnest remainder of atmospheric particles with large mean free path, mostly hydrogen and helium. TOA and surface insolation, annual mean Insolation is the incoming solar radiation that reaches a planet and its atmosphere or, by extension, any object exposed to solar rays, such as watts per square meter of Sun-facing cross section, across the entire electromagnetic spectrum; most of that power is in... Solar irradiance spectrum at top of atmosphere. ... The exosphere is the uppermost layer of the atmosphere. ...


The exact altitude varies by the energy inputs of location, time of day, solar flux, season, etc. and can be between 500-1000 km high at a given place and time because of these. A portion of the magnetosphere dips below this layer as well. The Van Allen radiation belts and the point of the South Atlantic Anomaly. ... A magnetosphere is the region around an astronomical object in which phenomena are dominated or organized by its magnetic field. ...


Althought these are all named layers of the atmosphere, the pressure is so negligible that the chiefly-used definitions of outer space are actually below this altitude. Orbiting satellites do not experience significant atmospheric heating, but their orbits do decay over time, depending on orbit altitude. Space missions such as the ISS, space shuttle, and Soyuz operate under this layer. Layers of Atmosphere - not to scale (NOAA) Outer space, also simply called space, refers to the relatively empty regions of the universe outside the atmospheres of celestial bodies. ... International Space Station insignia ISS Statistics Crew: 3 As of July 21, 2006 Perigee: 352. ... This article is about the NASA Space Shuttle vehicle. ... Soyuz is Russian for Union. Depending on the context, Soyuz may also refer to either of the following: The originally Soviet (now Russian) Soyuz program of human spaceflight The Soyuz spacecraft, used in that program The Soyuz launch vehicle that is used to launch those and other spacecraft This is...

Earth's atmosphere Layers of Atmosphere (NOAA) Air redirects here. ...

  Troposphere | Stratosphere | Mesosphere | Thermosphere | Exosphere   View of Earths troposphere from an airplane. ... Atmosphere diagram showing stratosphere The stratosphere is a layer of Earths atmosphere that is stratified in temperature, with warmer layers higher up and cooler layers farther down. ... The mesosphere (from the Greek words mesos = middle and sphaira = ball) is the layer of the Earths atmosphere that is directly above the stratosphere and directly below the thermosphere. ... The thermosphere is the layer of the Earths atmosphere directly above the mesosphere and directly below the exosphere. ... The exosphere is the uppermost layer of the atmosphere. ...

  Tropopause | Stratopause | Mesopause | Thermopause / Exobase   The tropopause is a boundary region in the atmosphere between the troposphere and the stratosphere. ... The stratopause is the level of the atmosphere which is the boundary between the stratosphere and the mesosphere. ... The mesosphere (from the Greek words mesos = middle and sfaira = ball) is the layer of the Earths atmosphere that is directly above the stratosphere and directly below the thermosphere. ... The exosphere (from the Greek words exo = out(side) and sphaira = ball) is the uppermost layer of the atmosphere. ...

  Ozone layer | Turbopause | Ionosphere   The ozone layer, or ozonosphere layer (rarely used term), is the part of the Earths atmosphere which contains relatively high concentrations of ozone (O3). ... The turbopause marks the altitude in the Earths atmosphere below which turbulent mixing dominates. ... Relationship of the atmosphere and ionosphere The ionosphere is the part of the atmosphere that is ionized by solar radiation. ...


 
 

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