Chemometric Analysis of Organic Matter Fluorescence - Aquatic Organic Matter Fluorescence - page 357

C1 C2 C3 C4 C5

0.4

0.3

0.25

0.25

0.4

0.3

0.2

0.2

0.2

0.3

0.15

0.15

0.2

0.2

0.1

0.1

0.1

0.1

0.1

0.05 0.05

0 0

0 0 0

300 400 500 600 300 400 500 600 300 400 500 600 300 400 500 600 300 400 500 600

600 600 600 600 600

500 500 500 500 500

400 400 400 400 400

300 300 300 300 300

300 350 400 300 350 400 300 350 400 300 350 400 300 350 400

Ex. (nm)

Figure 10.6. PARAFAC decomposition of the Horsens catchment fluorescence dataset. Spectra
are shown above contour plots, with spectra for two independently modeled halves of the data set
overlaid.

1 1 1

0.8 0.8 0.8

0.6 0.6 0.6

0.4 0.4 0.4

0.2 0.2 0.2

0 0 0

200 400 600 200 400 600 200 400 600

1 1

0.8 0.8

0.6 0.6

0.4 0.4

0.2 0.2

0 0

200 400 600 200 400 600

Wavelength (nm)

Figure 10.7. PARAFAC spectra in the Horsens catchment model (dotted lines) compared to PARAFAC
spectra in 10 published models (thin lines). See the Appendix for inter-model comparisons.