Reference Evapotranspiration Changes: Sensitivities to and Contributions of Meteorological Factors in the Heihe River Basin of Northwestern China (1961–2014)

Figure 4

Box and whisker plots of monthly of the HRB from 1961 to 2014. The line inside the boxes represents the median, and the upper and lower lines of the boxes indicate the 75th and 25th percentiles, respectively. The upper and lower parts of the whiskers indicate the maximum and the minimum of monthly , respectively.