Fig. 1: Principle component analysis (PCA) of the VOC emission profiles. | Communications Earth & Environment

Fig. 1: Principle component analysis (PCA) of the VOC emission profiles.

From: The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds

Fig. 1

a PC1 and PC2 scores for the individual soil samples and (b) the corresponding loadings of 273 unique protonated masses in the net emission profiles. Variances explained by the PCs are provided in square brackets. Labeling of soil depth was omitted for both soils since there was no significant difference. Site information in the score plot is coded by color; the proximities to the glacier for Kangerlussuaq soils (score plot), and m/z range information in the loading plot are coded by symbols.

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