Journal of the Meteorological Society of Japan. Ser. II
Online ISSN : 2186-9057
Print ISSN : 0026-1165
ISSN-L : 0026-1165
Electron-Microscopic Study of Ice-Crystal Nuclei in the Atmosphere
T. Okita
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1952 Volume 30 Issue 12 Pages 379-385

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Abstract

Ice crystals were captured on Mt. Zao and their nuclei were studied by using the electron-microscope and hydrogen fluoride. The record of radio sounding indicates these ice crystals were formed at a temperature of about -9°C.
The observation shows that most of the nuclei are soil particles, such as hematite, limonite, etc. On the other hand, very few combustion nuclei are found.

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