Southerly Wind at Nase as an Indication of coming Rain in Japan

[摘要] Southerly wind at Nase is well known among Japanese weather-men as an indication for the coming rain. T. Yamazaki had already investigated the reliability of the indicator and showed that the expectation of rain at Kobe on the new setting-in of southerly wind at Nase was very high. The present author took statistics for the late 6 years which elapsed since Yamazaki's investigation and obtained the expectation of 89% of coming rain at Nase on the breaking in of southerlies for winter months.On Haze: by K. Matsuyama (Japanese page 102-104): The auther cannot be contented with noting down simply ∞ for haze on his field note. His desire is to classify haze according to its mechanism or origin.His tentative clasification is that1 Hzae in narrower sence {(a) Yellow sand haze (b) Dust haze (C) Smoke haze}2 Kasumi (that is misty or waterly)3 Yellow sand(i, a) Yellow sand haze; Having yellowish red tint, diffusingly cover the sky, making no apparent stratification most frequent in Spring and Summer.(i, b) Dust haze; with thin gray tint. Occurs by strong wind after long drought; Street dust, Volcanic ashes etc. beeing its origin.(i, c) Smoke haze, well known.(ii) Kasumi (explained in the preceeding number of this Journal) whitish tint. Not likely to be observed in city atmosphere; misty and waterly.(iii) Yellow sand; more distinct one with the same character as (i, a); minute earthen powder whirled up by cyelonic storm on the continent and brought to Japan across the sea.

[学科分类] 大气科学