Radii of cloud elements in the Japanese sky calculated from the radii of coron ae

[摘要] The magnitude of cloud particles is measured by many authorities in Europe but not yet done in Japan.Probably it will be the same in Japan as in Europe, and to make sure the author calculated it from the results of observations of the radii of coronae. The result is that the radii of cloud elements which is measured in October, 1924 in Tokyo range between 0.004mm and 0.034mm, and values near 0.01mm occurred frequently. These values are of nearly the same order of magnitude observed by Assman and Kämtz. Pernter showed that the radii of cloud elements observed by means of corona radius range between 0.01mm and 0.05mm. Dines also gives rather great value. Comparing with these results the figures obtained by the present author is rather too small. Whether this due to the effect of. locality or to the insufficiency of the number of observations must be determined afterward.

[学科分类] 大气科学