Andrew McDougall

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Questions related from Andrew McDougall

Differences in water chemistry at stream sites once flow ceases?

All Should there be any differences in water chemistry of a stream site (pool/waterhole) once flow/discharge ceases? At depth? As the flow ceases and the water evaporates and stratifies, there...

10 December 2017 8,520 8 View

Principal Component Analysis (PCA) of water quality variables: can anyone help with normalizing data issues and correlations between variables?

I've got 16 sites (groundwater, streams, wetlands) that I'm using PCA to help discriminate the grouping of sites based on their water quality (26 variables). First issue: 3 of the 16 sites have...

15 July 2015 8,512 9 View