Termosfære
| Lagdelingen af Jordens atmosfære. | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||||||||||||||||
Termosfæren (græsk: thermē, dansk: ~ varme og sphaîra, dansk: ~ kugle) er et lag fra 80 km til 5-600 km højde i Jordens atmosfære. Pga. nedbremsning af kosmisk og solstråling ligger temperaturen på 1.700 °C, men da lufttrykket er ekstremt lavt, har det mindre betydning. Hubble-rumteleskopet, den Internationale Rumstation og tidligere rumfærgen, kredser om Jorden i termosfæren. Ionosfæren ligger i nederste halvdel af termosfæren. Ionosfæren reflekterer radiobølger fra Jorden. Det er fra dette lag i luften, at polarlys dannes.
I bunden af termosfæren ligger Kármán-linjen.[1]
Kildehenvisninger
- ^ Layers of the Atmosphere, National Weather Service JetStream – Online School for Weather
Se også
 | Spire Denne naturvidenskabsartikel er en spire som bør udbygges. Du er velkommen til at hjælpe Wikipedia ved at udvide den. |
|
Medier brugt på denne side
Science-template.svg
Forfatter/Opretter:
Science stub icon.
Forfatter/Opretter:
- Urutseg: Blank_template.svg
- AllyUnion, Stannered: Science-symbol-2.svg
- Ain92: combination
Science stub icon.
Double-alaskan-rainbow.jpg
Forfatter/Opretter: Eric Rolph at English Wikipedia, Licens: CC BY-SA 2.5
Full featured double rainbow in Wrangell-St. Elias National Park, Alaska.
Forfatter/Opretter: Eric Rolph at English Wikipedia, Licens: CC BY-SA 2.5
Full featured double rainbow in Wrangell-St. Elias National Park, Alaska.
AirFranceConcorde.jpg
Forfatter/Opretter:
Artist’s impression of an Air France Concorde in flight.
Forfatter/Opretter:
- original: User:Henrysalome
- this version: MG**** @@@-fr
Artist’s impression of an Air France Concorde in flight.
Top of Atmosphere.jpg
View of the crescent moon through the top of the Earth's atmosphere. Photographed above 21.5°N, 113.3°E by International Space Station crew Expedition 13 over the South China Sea, just south of Macau (NASA image ID: ISS013-E-54329).
View of the crescent moon through the top of the Earth's atmosphere. Photographed above 21.5°N, 113.3°E by International Space Station crew Expedition 13 over the South China Sea, just south of Macau (NASA image ID: ISS013-E-54329).
ISS Aug2005.jpg
ISS photo taken from shuttle Discovery in August 2005.
Original description: "Backdropped by a colorful Earth, this full view of the International Space Station was photographed from the Space Shuttle Discovery during the STS-114 Return to Flight mission, following the undocking of the two spacecraft." The upper part of the Caspian Sea is visible in the background (the Volga delta is the dark area in the lower right.
Editing: Brightness and contrast was enhanced, saved 85% JPEG.
ISS photo taken from shuttle Discovery in August 2005.
Original description: "Backdropped by a colorful Earth, this full view of the International Space Station was photographed from the Space Shuttle Discovery during the STS-114 Return to Flight mission, following the undocking of the two spacecraft." The upper part of the Caspian Sea is visible in the background (the Volga delta is the dark area in the lower right.
Editing: Brightness and contrast was enhanced, saved 85% JPEG.
Boliden-Phasen.jpg
Abb.A zeigt ein Meteor-Ereignis das als Feuerkugel oder Bolide bezeichnet wird und man erkennt die beiden Plasmaphasen Abb.B ist ein zerschlagener Meteoroid in der letzten Flugphase als Bolide oder Feuerkugel
Abb.A zeigt ein Meteor-Ereignis das als Feuerkugel oder Bolide bezeichnet wird und man erkennt die beiden Plasmaphasen Abb.B ist ein zerschlagener Meteoroid in der letzten Flugphase als Bolide oder Feuerkugel
Magnetosphere rendition.jpg
Artist's rendition of Earth's magnetosphere.
Artist's rendition of Earth's magnetosphere.