Uploaded on October 01, 2012 20:46 UTC
-- (Cloned calibration from calibration) -- (Cloned calibration from Fluoresent with smartphone spec)
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| urban atmospheres | liz | 2 |
spectrum.addAndParseTag('smooth:10'); // Smooth the spectrum
// spectrum.addAndUploadTag('smooth:10'); // <== to save
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https://en.wikipedia.org/wiki/Fraunhofer_lines
Fantastic O2 lines at ~900nm, 760nm and 685nm! 760 especially.
The double line at 717 and 725 that we were wondering about seems to be H20 according to the graph on Wikipedia: https://en.wikipedia.org/wiki/File:Spectrum_of_blue_sky.svg
I think that if it weren't as overexposed in the blue-green region we'd have gotten some of those lines as well.
By the way, the spectrum you took looks really interesting! You cansee the Oxygen absorption aroun 760nm quite well. Although there is a whole world of information in the IR which is not present, where you can see CO2, water vapour and other greenhouse gases: http://www.stellarnet-inc.com/images/solar%20image%20200-2400nm.gif
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How was this spectrum taken? How did you get so far into the NIR?