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uploaded by philippg
by philippg, 09 Jul 08:39
by philippg, 09 Jul 09:12
by philippg, 09 Jul 09:56
by philippg, 09 Jul 10:40
by philippg, 09 Jul 11:14
by philippg, 09 Jul 11:51
by philippg, 09 Jul 12:46
To the extent possible under law,
has waived all copyright and related or neighboring rights to
"Lake Peipsi Water Spectra".
<p>9 July Fieldwork Lake Peipsi, Estonia. Water Quality. Upwelling Radiance, 135deg from sun, 45deg to surface</p>
Cool -- what kind of water quality are you looking at? Some kind of pollutant?
hi, no we try to extract water constituent concentrations from optical measurements. mainly chlorophyll-a, but also other stuff. we (the ocean color community) do this regularly with professional spectrometers and i wanted to see how well the desktop kit performs in comparison. i'll post my results and conclusions these days :-). but one thing is already obvious: sensitivity is an issue. but i have some ideas to tackle that. sooo, next station to be measured. greetings from estonia! cheers, philipp
very cool - i'm sure you know already but the best place to post is http://PublicLab.org
Hello to Estonia!
Have you tried fluorescence? A green laser or strong UV light can amplify a signal a lot.
Also, some people are modifying the spectrometers to use an SLR or a longer-exposure-capable camera. That will dramatically improve sensitivity. Some utilities can also be used to boost gain and exposure -- you can find them documented on the PublicLab.org site. Good luck, thanks for the cool work!