2024-06-15T22:36:03Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00020234
2023-01-26T02:57:33Z
879:1183:1640:1740
CALCULATION OF WAVEFORMS RADIATING FROM RETURN STROKES
IWATA, Akira
59078
1970-03-30
The velocity of luminosity progress along a vertical lightning channel is assumed for the first, and for the subsequent, return stroke to be expressed with a double exponential formula, whose parameter values are introduced afresh for the use of a digital computor taking the final channel height into account. The waveforms of atmospherics radiating from return strokes are numerically calculated. It is shown that the waveforms calculated respectively for the first, and for the subsequent, stroke are slightly different with each other at 100 km propagation distance from their origin, and mainly consist of radiation field component at VLF band. Below 1kHz the effect of electro-static, and of induction, field component can not be neglected at this propagation distance.
departmental bulletin paper
The Research Institute of Atmospherics, Nagoya University
1970-03-30
Proceedings of the Research Institute of Atmospherics, Nagoya University
17
115
123
http://hdl.handle.net/2237/22148
0077-264X
eng