| 释义 |
air discharge air discharge[′er ′dis‚chärj] (geophysics) A form of lightning discharge, intermediate in character between a cloud discharge and a cloud-to-ground discharge, in which the multibranching lightning channel descending from a cloud base does not reach the ground, but succeeds only in neutralizing the space charge distributed in the subcloud layer. A type of diffuse electrical discharge occasionally reported as occurring in the region above an active thunderstorm. |