Improving TIGGE Precipitation Forecasts Using an SVR Ensemble Approach in the Huaihe River Basin

Figure 4

Box and whisker plots of forecast errors in the Xixian watershed during 2015–2017. The cross represents the mean value, the horizontal line in the box represents the median of the distribution (50% of the data are greater than this value), and the upper and lower box limits represent the upper and lower quartiles (25% of data greater/lower than the value), respectively. Maximum and minimum values are indicated by the top and bottom horizontal lines. The outlier points show values more than two-thirds of the quantile. (a) +1 d. (b) +2 d. (c) +5 d. (d) +7 d

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