A Comparative Study on the Positive Lightning Return Stroke Electric Fields in Different Meteorological Conditions

Table 5

Statistical summary of zero-crossing time.

	First return stroke	Subsequent return strokes	All
AM	62.9	35.9	57.8
SD	155.1	26.1	140.3
GM	22.2	28.9	23.4
Min	2.6	11.8	2.6
Max	834.6	93.7	834.6
Sample size,	39	9	48