Abstract
Various electrical properties of winter fog were measured at Asahikawa in 1968, following the previous observation as reported in Part I (Endoh, Iwabuchi and Magono 1972).
From the results of measurement of the vertical distribution of the potential gradient in a fog layer, it was found that the electric potential gradient in a fog layer was greater than that above the layer. This was considered to be caused by the smaller conductivity of the air in the fog layer.
When a snow cloud passed overhead during the fog, a high negative point discharge current was observed. This was explained by the negative potential gradient at the point due to the negative space charge of the snow cloud.
Peculiar changes were noticed in the antenna-earth current, and they were explained by the effect of the smoke from steam locomotives, flapping of crows' wings, falling off of frost pieces from the antenna line, and the sheathing-layer-like phenomenon on the upper surface of the fog layer.
