Oscillating bipolar electric field changes due to close lightning return strokes
- 1 May 1983
- journal article
- Published by American Geophysical Union (AGU) in Radio Science
- Vol. 18 (3) , 391-398
- https://doi.org/10.1029/rs018i003p00391
Abstract
We have recorded electric field changes due to close lightning return strokes during winter thunderstorms in the Hokuriku area, Japan. Oscillating bipolar field changes were sometimes recorded together with ordinary unipolar field changes as recorded in summer thunderstorms. In order to understand the reason for the appearance of an oscillating field change, we calculated the return stroke current along a lightning channel with a transmission line model and computed the field change due to the current at several distances. The calculation shows that the electric field due to nearby lightning (up to 30 km distant) oscillates because of the relatively small volume of the winter thundercloud.Keywords
This publication has 8 references indexed in Scilit:
- A wave guide model of lightning currentsJournal of Atmospheric and Terrestrial Physics, 1981
- Lightning return stroke modelsJournal of Geophysical Research: Oceans, 1980
- The fine structure of lightning return stroke wave formsJournal of Geophysical Research: Oceans, 1978
- Transmission line representation of a lightning return strokeJournal of Physics D: Applied Physics, 1978
- The anomalous winter thunderstorms of the Hokuriku CoastJournal of Geophysical Research: Oceans, 1978
- The modeling of channel current in the lightning return strokeRadio Science, 1977
- Correlated electric and magnetic fields from lightning return strokesJournal of Geophysical Research, 1975
- Computation of the diameter of a lightning return strokeJournal of Geophysical Research, 1968