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Ref. No. [UMCES] CBL 2015-009
ACT VS15-02
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Figure 4.
Time series of pH measured detected by Manta2 sonde deployed without antifouling copper
screen 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 Manta2 pH sensor and the dye reference method.