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Ref. No. [UMCES] CBL 2015-013

ACT VS15-06

Figure 9.

Time series of pH measured detected by a SAMI-pH(mCP) instrument deployed during the 1

month MLML field trial.

Top Panel

: Continuous pH

Total

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. Zero

offset is represented by dashed line as pH

Total

scale is reported by both the SAMI-pH sensor and the dye

reference method.

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