NASA的大气层照片显示大气的层次

 

      蒋迅老师《从航天器看地球大气层》 
http://www.sciencenet.cn/m/user_content.aspx?id=354650
里第一张图片的大图，以及最后一张图。下载它们。 

      可是，“从照片还可以清晰地看到大气层的不同层次”是怎么看出来的？

相关：Take a deep breath and then read this
http://astrobob.areavoices.com/2010/06/16/take-a-deep-breath-and-then-read-this/

   以下图片无商业用途。

 

(1) Sunset from the ISS
http://www.internet-d.com/?p=9581 

Explanation: What are these strange color bands being seen from the International Space Station? The Sun setting through Earth’s atmosphere. Pictured above, a sunset captured last month by the ISS’s Expedition 23 crew shows in vivid detail many layers of the Earth’s thin atmosphere. Part of the Earth experiencing night crosses the bottom of the image. Above that, appearing in deep orange and yellow, is the Earth’s troposphere, which contains 80 percent of the atmosphere by mass and almost all of the clouds in the sky. Above the troposphere, seen as a light blue band with white clouds, is the stratosphere, part of the Earth’s atmosphere where airplanes fly and some hardy bacteria float. Above the stratosphere, visible as a darker blue bands, are higher and thinner atmospheric levels that gradually fade away into the cold dark vacuum of outer space. Sunset is not an uncommon sight for occupants of the International Space Station, because it can be seen as many as 16 times a day. 

 

  (2) Infographic: Earth's Atmosphere Top to Bottom
(infographic by Telescopes for Beginners)
http://www.ouramazingplanet.com/earth-atmosphere-layers-atmospheric-pressure-infographic-0326/

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