Climatic Characteristics and Determination Method for Freezing Rain in China

Figure 3

Statistic characteristics of meteorological elements in different regions during the freezing rain events. The wide boxes represent the interquartile range from the 25th to 75th percentile. The narrow solid box and the lines represent the mean and median values, respectively. The “whiskers” extend upward to the 90th percentiles and downward to the 10th percentiles. The solid triangles represent the maximum and minimum values, respectively. (a) Temperature; (b) relative humidity; (c) wind speed; (d) frequency of wind direction.

(a)

(b)

(c)

(d)