Journal of the Meteorological Society of Japan. Ser. II
Online ISSN : 2186-9057
Print ISSN : 0026-1165
ISSN-L : 0026-1165
Sky-light Observation with the Selenium Blocking-layer Photocell
M. KAWANO
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1935 Volume 13 Issue 11 Pages 499-505

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Abstract

The blocking-layer photocell, having several advantages, has recently become noticed as applicable in meteorological works. With “Mazda” selenium photocell, we have made a trial measurement of the distribution of sky-light Difficulty arising from the fatigue was scarcely found when the light falling upon the cell was suitably limited. We obtained among others some noteworthy results, that (1) magnitude an distribution of brightness near the sun for the cloudless, but very turbid sky due to the “yellow dust” quite resembles to that for the overcast sky with thin CS cloud; (2) “Isophoten” near the sun is quite circular in comparison with somewhat elliptic observed by C. Dorno

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