Journal of geomagnetism and geoelectricity
Online ISSN : 2185-5765
Print ISSN : 0022-1392
ISSN-L : 0022-1392
Volume 35, Issue 3
Displaying 1-2 of 2 articles from this issue
  • Tadao MAKING, Hiromasa YAMAMOTO, Hiroyuki SEKIGUCHI
    1983 Volume 35 Issue 3 Pages 57-64
    Published: 1983
    Released on J-STAGE: September 14, 2010
    JOURNAL FREE ACCESS
    The height distributions of the airglow emissions in the regions of 1.3μm and 1.6μm were observed by a rocket-borne radiometer 83 minutes after sunset at Uchinoura, Japan. The 1.6μm emission from the lower vibrational levels of OH occurred in a wider height range and at a lower peak height by a few kilometers than the previous midnight profiles in the same wavelength region. The 1.3μm emission, including the O2 1.27μm airglow and the OH airglow from higher vibrational levels, had a peak emission height at 90km and a height width of 14km. A possibility for a contribution of the HO2 reaction to the formation of vibrationally excited OH is discussed in the light of the observed airglow profiles.
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  • Toshitaka TSUDA, Takehiko ASO, Susumu KATO
    1983 Volume 35 Issue 3 Pages 65-86
    Published: 1983
    Released on J-STAGE: September 14, 2010
    JOURNAL FREE ACCESS
    Systematic observation of the Kyoto meteor radar (35°N, 136°E) has been continuing since the end of 1977. A seasonal variation of diurnal and semidiurnal solar atmospheric tides at meteor heights has been studied by using meteor radar data. Monthly average behaviours of these tidal components have been summarized for the period from March 1979 to November 1980. Vertical profiles and harmonic dials of these components have been investigated in comparison with other meteor radar data. Complicated behaviour of diurnal tide can be explained by an interference between propagating and evanescent modes. The evanescent mode becomes dominant in summer, while the propagating mode appears in winter. As for semidiurnal tide, the S2, 2 mode is fundamental in summer, and the S2, 4 mode becomes apparent in winter.
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