

Ref. No. [UMCES] CBL 2015-008
ACT VS15-01
39
A cross-plot of the matched observations is given in figure 16. The linear regression was
statistically significant (p<0.001, r
2
= 0.81). The slope of the regression was 0.575 with an
intercept of 3.102.
Figure 16.
CBL field response plot of Campbell Scientific Instruments pH sensor compared to
reference pH
Total
samples. Fine dotted line represents 1:1 correspondence, coarse dotted line
represents correspondence predicted based on difference between pH
NBS
and pH
Total
in seawater
(pH
NBS
= pH
Total
+ 0.13).