Figure 4
From: Corona discharge induced snow formation in a cloud chamber

(a) Snow weight vs. different heights of electrode relative to the cold bottom plate (red curve) (the voltage applied was fixed at 10 kV) and the corresponding calculated saturation ratio of mixed air (green curve); (b) Saturated vapor density ρs of mixed air at representative heights of 2.0 cm (c1, green lines) and 10.0 cm (c2, blue lines).