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

A 10-hour wave in the mesospheric and lower thermospheric neutral winds and temperature was observed at northern high-latitude stations Resolute (74.9degreesN) and Eureka (80.1degreesN) by two Fabry-Perot interferometers, a Michelson interferometer, and a CCD spectrograph. The vertical wavelength of the wave was estimated to be similar to53 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.

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Copyright 2002 American Geophysical Union.
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Author Wu, Qian
Killeen, Timothy L.
McEwen, D.
Solomon, Stanley C.
Guo, W.
Sivjee, G.
Reeves, J.
Publisher UCAR/NCAR - Library
Publication Date 2002-06-01T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2025-07-17T17:10:25.596144
Metadata Record Identifier edu.ucar.opensky::articles:9721
Metadata Language eng; USA
Suggested Citation Wu, Qian, Killeen, Timothy L., McEwen, D., Solomon, Stanley C., Guo, W., Sivjee, G., Reeves, J.. (2002). Observation of the mesospheric and lower thermospheric 10-hour wave in the northern polar region. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7jh3n1q. Accessed 09 November 2025.

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