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

Yasunobu Miyoshi, Hitoshi Fujiwara

Research output: Contribution to journalArticle

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 250 km, indicating dynamical coupling between the mesosphere and thermosphere and the lower atmosphere.

Original languageEnglish
Pages (from-to)199-207
Number of pages9
JournalMemoirs of National Institute of Polar Research, Special Issue
Issue number59
Publication statusPublished - Mar 2006

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences (miscellaneous)

Fingerprint Dive into the research topics of 'Day-to-day variations of migrating semidiurnal tide in the mesosphere and thermosphere'. Together they form a unique fingerprint.

  • Cite this