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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 the instrument versus reference measurements (r
2
= 0.550;
p<0.0001)) had a slope of 1.595 and intercept of -3.102.
Figure 9.
HIMB field response plot of HOBO compared to reference DO samples determined by Winkler
Titration. The plotted line represents a1:1 correspondence.