Fig. 10: Normal distributions and ranges for four identifying-source indices of fluvial DOM. | npj Clean Water

Fig. 10: Normal distributions and ranges for four identifying-source indices of fluvial DOM.

From: A novel-approach for identifying sources of fluvial DOM using fluorescence spectroscopy and machine learning model

Fig. 10

a–b MS-SI, c–d DW-SI, e–f LW-SI, and g–h NO-SI. The red histograms in subfigures (a, c, e, and g) represented the distribution characteristics of MS-SI, DW-SI, LW-SI, and NO-SI values of MS-DOM. Likewise, blue, green, and purple histograms were connected with DW-DOM, LW-DOM, and NO-DOM, respectively. For each subfigure (b, d, f, and h), the range of a given identifying source index values from four types of DOM was shown. On the coordinate axis, near the center point was the minimum value of a given identifying source index, and the furthest away from the center point was the maximum value.

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