Observation of the mesospheric and lower thermospheric 10-hour wave in the northern polar region

Q. Wu, T. L. Killeen, D. McEwen, S. C. Solomon, W. Guo, G. G. Sivjee, J. M. Reeves

Research output: Contribution to journalArticlepeer-review

Abstract

[1] A 10-hour wave in the mesospheric and lower thermospheric neutral winds and temperature was observed at northern high-latitude stations Resolute (74.9°N) and Eureka (80.1°N) by two Fabry-Perot interferometers, a Michelson interferometer, and a CCD spectrograph. The vertical wavelength of the wave was estimated to be ∼53 km. An interstation wave phase comparison yielded a zonal wave number close to five. The neutral wind wave amplitude increased with altitude up to 97 km and varied little with latitude. Our observations suggest that the 10-hour wave is likely to be a result of the semidiurnal tide and the quasi-2-day wave nonlinear interaction and unlikely to be a Lamb wave. The OH emission and temperature observations are also consistent with this interpretation.

Original languageEnglish (US)
JournalJournal of Geophysical Research: Space Physics
Volume107
Issue numberA6
DOIs
StatePublished - Jun 2002
Externally publishedYes

Keywords

  • 10-hour wave
  • Fabry-Perot interferometer
  • Quasi-2-day wave
  • Resolute
  • Semidiurnal tide
  • Winter mesopause

ASJC Scopus subject areas

  • Geophysics
  • Space and Planetary Science

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