On the Casualities due to Lightning in Monntain Region

[摘要] A village named Kogo, in Ena District, Gihu Prefecture, casualities due to lightning were reported in August, 1922 and July, 1923. On the former occasion, a person struck came off with temporary fainting, while on the latter two women and a horese were killed. From the results of the investigations, the author remarks the followings: (1) The occurence of the casualities, which are otherwise regarded as rare in mountainous districts, are to be attributed to a special topographical condition of the district here concerued. (2) The thunderstorm, though proceeded generally along the valley, it occurred at well that it crossed a mountain ridge from one valley to another. It seems therefore that the effect of gravity as quoted by Defant was superceded on this occasion by the influence of an upper air current. (3) The thunderstorm in the present case increased its energy by coalescing with another. (4) The horse killed was shod, while the pony not shod was saved, which was standing near by. The two wommen killed were similarly nuder conditions apparently favourable for conducting the discharge.

[学科分类] 大气科学