Figure 4

Validation by regression to the training data subsets. (a–c) Time series of autoregression for the 2013–2014, 2014–2015, and 2015–2016 seasons are shown in (a–c), respectively. The blue solid line and the colored range indicate regression fit curves and their 95% confidence intervals, respectively. Green, orange, red, and navy dots indicate the observed values of QY. (d) Correlation analysis between regression by the model and observed values. Scatter plot of predicted values from the model vs. observed values. Solid lines indicate the regression curves of the plots (see Fig. S4).