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

Table 2

Statistical summary of zero-to-peak rise time for 48 positive return strokes.

	First return stroke	Subsequent return strokes	All
AM, s	22.4	24.9	22.4
SD, s	28.1	26.3	28.1
GM, s	12.9	16.9	12.9
Min, s	1.5	3.1	1.5
Max, s	136.9	91.2	136.9
Sample size,	39	9	48