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A cross-plot of the matched observations for the first month of deployment is given in
figure 9. Comparisons were limited to one month as a representation of a typical field deployment
and to focus on initial instrument offset versus impacts of biofouling during an extended
deployment. A linear regression of instrument versus reference measurements for the subset data
(r
2
= 0.96, p<0.001) had a slope of 1.117 and intercept of -0.692.
Figure 9.
HIMB field response plot of Troll 9000 compared to reference DO samples determined by
Winkler Titration. The plotted line represents a1:1 correspondence.