Evaluation on the legitimacy of 'assumption of plane waves' in the result in numerical calculation in surge impedance Z_p in peaks (E)_p and (B)_p in the electric fields (E) and magnetic fields (B) caused by the vertical first lightning return strokes to the flat ground of downward flashes in conventional methods

摘要

In the result in the numerical calculation (with modeling on the vertical first lightning return strokes to the flat ground of downward flashes) in the surge impedance Z_p in the peaks (E)_p and (B)_p in the electric fields (E) and magnetic fields (B) caused by the vertical first lightning return strokes in conventional methods, the "assumption of plane waves on extremely far electric fields (E) and extremely far magnetic fields (B) in space" used on the trial establishment, with lightning location systems (LLS) et al., in the probability distribution in the peaks I_p in scalar conductive currents of lightning return strokes to the earth I is firstly mostly legitimatized. The discussion about the abolition, also with precise reconsideration for practical use, on the "assumption of plane waves on middle and far (excluding extremely far) electric fields (E) and middle and far (excluding extremely far) magnetic fields (B) in space" used in the trial establishment, with the LLS et al., in the probability distribution in the peaks l_p in the scalar conductive currents of the lightning return strokes to the earth I is secondly recommended.