Day-to-day variations of migrating semidiurnal tide in the mesosphere and thermosphere

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Abstract

By using a general circulation model, we examine behavior of the migrating semidiurnal tide for solar cycle moderate and geomagnetically quiet conditions. We investigate day-to-day variabilities 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 tropopause to the thermosphere. Fluctuations of the migrating semidiurnal amplitude with periods of 10-12 and 25 days are found at altitudes from 20 to 250km, indicating dynamical coupling between the mesosphere and thermosphere and the lower atmosphere.

Journal

  • Memoirs of National Institute of Polar Research. Special issue

    Memoirs of National Institute of Polar Research. Special issue (59), 199-207, 2006-03

Codes

  • NII Article ID (NAID)
    120005503845
  • NII NACSIS-CAT ID (NCID)
    AA00733561
  • Text Lang
    ENG
  • Article Type
    departmental bulletin paper
  • Data Source
    IR 
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