Day-to-day variations of migrating diurnal tide simulated by a GCM from the ground surface to the exobase

Yasunobu Miyoshi, Hitoshi Fujiwara

研究成果: Contribution to journalArticle査読

59 被引用数 (Scopus)

抄録

A new general circulation model (GCM) which contains the region from the ground surface to the exobase has been developed and used to investigate behavior of the migrating diurnal tide for equinox during solar cycle minimum and geomagnetically quiet conditions. In particular, we study day-to-day variations of migrating diurnal tides in the mesosphere and thermosphere and their relation with migrating diurnal tides generated in the lower atmosphere. The results show that day-to-day variations of the migrating diurnal tide are evident from the upper troposphere to the thermosphere. Fluctuations of the migrating diurnal amplitude with periods of 12 and 25 days are found in the height range from 20 to 300 km, indicating dynamical coupling between the mesosphere and thermosphere and the lower atmosphere.

本文言語英語
ジャーナルGeophysical Research Letters
30
15
DOI
出版ステータス出版済み - 8 1 2003

All Science Journal Classification (ASJC) codes

  • 地球物理学
  • 地球惑星科学(全般)

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