

Ref. No. [UMCES] CBL 2015-009
ACT VS15-02
25
Figure 7.
Time series of pH measured by Manta2 sonde deployed with antifouling copper screen during
the 3 month HIMB 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.