Figure 4.6. Calibration data for determining τb for fans and misters.
Using the calibrated values for τb and validation data for the fans from June 23, 2011 and
for the misters on June 29, 2011, Figure 4.7 shows the observed and predicted values
used for validation of τb. The RMSE for the fans was 1.65 and for the misters was 1.60.
While the validation of the model would be improved with more data from various
seasons (currently unavailable), these results show a reasonable agreement between the
observed and predicted models. When plotting observed versus predicted values, the
confidence interval (α = 0.05) for the slopes are 0.88 < β < 1.26 for fans and 0.88 < β <
1.24 for misters. Since unity is a part of both confidence intervals, the agreement
between the observed and predicted values can be considered not significantly different.