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The mass density, pressure, and electron density in three lightning strokes near peak temperature

1964; American Geophysical Union; Volume: 69; Issue: 24 Linguagem: Inglês

10.1029/jz069i024p05423

2156-2202

M. A. Uman, Richard E. Orville, Leon E. Salanave,

Power Transformer Diagnostics and Insulation

Uman et al. [1964] presented the first determination of the density, pressure, and particle distribution in a lightning stroke near peak temperature. In the present letter, we convey the results of the calculation of mass density, total pressure, and electron density in three lightning strokes at 24,000°K (near peak temperature) using the method of analysis developed by Uman et al. The strokes analyzed are those for which Prueitt [1963] determined the following average excitation temperatures: A−1, Tex = 24,400 ± 800°K; A−3, no. 1, Tex = 24,900 ± 400°K; C−1, no. 1, Tex = 24,200 ± 900°K (the stroke designation is from Prueitt [1963]). Uman [1964] has shown that these average excitation temperatures are in all probability within 10% of the peak temperatures of the strokes.