Memoirs of the Kakioka Magnetic Observatory Vol.07 No.01， p.75, May, 1954
On the Atmospheric Electric Investigation on the Sea Fog
The writer has investigated on the sea fog at Akkeshi, Hokkaido.
When sea fogs come over to the land, variations of the potential gradient and the conductivity of the atmosphere are observed. As the sea fogs approach the observational point, the potential gradients increase and the values of the conductivity dccrease.
In exceedingly dense sea fogs, the visibility is 30-40 meters and the potential gradients show high values (500-600 V/m) which are, however, confined to only three times as large as the normal value. The values of the electric conductivity are less than the normal value (0.18x10-4 e.s.u.).