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 language | English (US) |
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Journal | Journal of Geophysical Research: Space Physics |
Volume | 107 |
Issue number | A6 |
DOIs | |
State | Published - Jun 2002 |
Externally published | Yes |
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