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Ref. No. [UMCES] CBL 2015-011
ACT VS15-04
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Figure 9.
Time series of pH measured detected by Troll 9500 pH sensor deployed during the 1 month
MLML field trial.
Top Panel
: Continuous pH
NBS
recordings from instrument (blue line) and pH
Total
of
adjacent grab samples determined by mCP dye (red circles).
Bottom Panel
: Difference in measured pH
relative to reference samples (Instrument – Dye Ref) observed during deployment. Dashed line
represents offset (ca 0.13) predicted due to difference in pH
NBS
and pH
Total
scales used by the Troll 9500
sensor and the dye reference method