Day-to-day variations of migrating semidiurnal tide simulated by a general circulation model

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Author(s)

    • MIYOSHI Y.
    • Department of Earth and Planetary Sciences, Faculty of Sciences, Kyushu University

Abstract

By using a general circulation model, we examine behavior of the migrating semidiurnal tide for equinox during solar cycle minimum and geomagnetically quiet conditions. We investigate day-to-day variations of the migrating semidiurnal tide in the mesosphere and thermosphere, and their relation with the migrating semidiurnal tide generated in the lower atmosphere. The results show that day-to-day variations of the migrating semidiurnal tide are evident from the upper troposphere to the thermosphere. Fluctuations of the migrating semidiurnal tide amplitude with periods of 17-18 and 25 days are found at altitudes from 20 to 200 km height, indicating dynamical coupling between the mesosphere and thermosphere and the lower atmosphere.

Journal

  • Advances in polar upper atmosphere research

    Advances in polar upper atmosphere research (18), 87-95, 2004-08

    National Institute of Polar Research

Codes

  • NII Article ID (NAID)
    110000990701
  • NII NACSIS-CAT ID (NCID)
    AA11397422
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    13451065
  • Data Source
    CJPref  NII-ELS  IR 
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