Journal of geomagnetism and geoelectricity
Online ISSN : 2185-5765
Print ISSN : 0022-1392
ISSN-L : 0022-1392
Volume 3, Issue 2
Displaying 1-4 of 4 articles from this issue
  • Atsushi KIMPARA
    1951 Volume 3 Issue 2 Pages 25-31
    Published: November 30, 1951
    Released on J-STAGE: March 12, 2010
    JOURNAL FREE ACCESS
    The author proposes the consideration that the main origins of atmospherics are the symbol indicating the degree of disturbances in the conditional instability region, of which he confirmed the frontal type and the air mass type. This is not only justified on physics of the formation of atmospherics, discussing from the view point of electromagnetic waves and atmospheric electricity as well as from the meteorological point of view, but also it is confirmed by the observations actually made for years. In this paper the examples concerning the Typhoon Kezia are given and explained in detail. He found that origins of atmospherics concerning to this typhoon are destributed most frequently on the right hand side of the centre of the typhoon, especially on the perpendicular direction to the course, and they increase slowly with distance from the centre to 400km, accompanying a small peak at 100km, and at 400km they reach maximum, and then decrease rather rapidly to 600km.
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  • T. YONEZAWA
    1951 Volume 3 Issue 2 Pages 32-36
    Published: November 30, 1951
    Released on J-STAGE: March 12, 2010
    JOURNAL FREE ACCESS
    By comparing the electron density variations in the F2 region during the night at Kokubunji and Yamagawa it has been made clear that, if we assume a linear law of electron disappearance and some-what higher temperature of the upper atmosphere at Yamagawa than at Kokubunji, the observational data fit theoretical expectation rather well, but a quadratic law can hardly be reconciled with the observations, unless recombination coefficient changes markedly with height.
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  • N. KITAGAWA, T. IIZUKA, K. MURAI, M. KOBAYASHI
    1951 Volume 3 Issue 2 Pages 37-43
    Published: November 30, 1951
    Released on J-STAGE: March 12, 2010
    JOURNAL FREE ACCESS
    We equipped cathode-ray direction-finders on three observation stations which were situated on the end-points of the long base lines, and made simultaneous recordings of atmospherics bearing on photographic film. With these records we located atmospherics sources over a wide region which includes the tropical zone.
    Comparing the distribution of atmospherics sources with meteorological phenomena, we get the following results:
    1. Atmospherics received stationarily in Japan are usually generated by the thunderstorms which occur in South-east Asia, Australia and India.
    2. In the region to the north of the 60°N line, we can scarcely find the atmospherics source.
    3. In the temperate region, including Japan, atmospherics are observed to be accompanied with thunderstorms frontal, lines and depressions.
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  • Sadami MATSUSHITA
    1951 Volume 3 Issue 2 Pages 44-46
    Published: November 30, 1951
    Released on J-STAGE: March 12, 2010
    JOURNAL FREE ACCESS
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