Geoscience Reference
In-Depth Information
(a)
18.0
Unbleached
Bleached
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
400
450
500
550
600
Emission wavelength (nm)
(b)
18.0
Unbleached
Bleached
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
400
450
500
550
600
Emission wavelength (nm)
(c)
0.00
-1.00
-2.00
-3.00
-4.00
-5.00
-6.00
-7.00
-8.00
Bog
Algae
-9.00
-10.00
400
450
500
550
600
Emission wavelength (nm)
Figure 7.7. The effect of photobleaching on DOM emission spectra (ex370) for two sources of DOM.
(A)
Groundwater from a Sphagnum dominated bog.
(B)
An algae culture. The difference between
unbleached and bleached spectra
(C)
is also shown.
