Journal of the Meteorological Society of Japan. Ser. II
Online ISSN : 2186-9057
Print ISSN : 0026-1165
ISSN-L : 0026-1165
Studies of the Results of Observations by Means of Pilot Ballons (3rd paper)
H. Arakawa
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1932 Volume 10 Issue 12 Pages 770-798

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Abstract

This paper contains the results of observations of upper air current at selected atations in Japan. To this end the data are presented in a series of tables containing information in considerable detail.
In working out this paper, grateful acknowledgement is due Prof. T. Okada and Prof. S. Fujiwhara for their kind encouragement. Hearty thanks is also due to Messrs. M. Tanimoto, H. Hatakeyama and T. Ootani who carried on some of the tedious work of compiling and reducing the data. Special appreciation is also expressed Misses. S. Koyama, E. Kobayasi and others for the patience, accuracy and fidelity with which they asisted this pains-taking work.
The data used in this paper, are the results of the pilot-balloon observations made at the Central Meteorological Observatory and sotne of the selected stations in Japan as follows:
Table I. List of Stations.
The data are discussed under following chapters.
I Percentage frequency of free-air winds from different directions.
II Mean velocity of free-air winds from different directions.
III Seasonal variation of the upper-air current.
IV Daily variation of the upper-air current.
V Relation between the upper-air current and the altitude.

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