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A cross-plot of all matched observations during the first month of deployment is given in
figure 3. 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
= 0.97;
p<0.0001) produced a slope of 0.92 and intercept of 1.03.
Figure 3
. MTU GLRI field response plot for the first month of deployment of PME miniDOT instrument
compared to reference DO samples. The plotted line represents a 1:1 correspondence. (Yellow circles
denote adjusted reference values).