Research Article
A Comparative Study on the Positive Lightning Return Stroke Electric Fields in Different Meteorological Conditions
Table 4
Statistics for (a) slow front duration, (b) slow front amplitude relative to peak, and (c) fast transition rise time (10–90%).
(a) |
| | First return stroke | Subsequent return strokes | All |
| AM, s | 19.1 | 21.1 | 19.1 | SD, s | 26.2 | 24.9 | 25.7 | GM, s | 9.8 | 12.5 | 9.8 | Min, s | 0.5 | 1.6 | 0.5 | Max, s | 131.4 | 83.5 | 131.4 | Sample size, | 39 | 9 | 48 |
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(b) |
| | First return stroke | Subsequent return strokes | All |
| AM, % | 44.5 | 43.2 | 44.3 | SD, % | 13.7 | 20.6 | 15 | GM, % | 42.2 | 39.3 | 41.7 | Min, % | 17.6 | 26 | 17.6 | Max, % | 73.9 | 76.8 | 76.8 | Sample size, | 39 | 9 | 48 |
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(c) |
| | First return stroke | Subsequent return strokes | All |
| AM, s | 2.5 | 3 | 2.6 | SD, s | 4.7 | 1.7 | 4.3 | GM, s | 1.4 | 2.5 | 1.6 | Min, s | 0.3 | 1.1 | 0.3 | Max, s | 28.9 | 6.2 | 28.9 | Sample size, | 39 | 9 | 48 |
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