Observations of the quasi 2-day wave from the High Resolution Doppler Imager on Uars

• Published in: Geophysical research letters Vol. 20; no. 24; pp. 2853 - 2856
• Main Authors: Wu, D. L., Hays, P. B., Skinner, W. R., Marshall, A. R., Burrage, M. D., Lieberman, R. S., Ortland, D. A.
• Format: Journal Article
• Language: English
• Published: Legacy CDMS Blackwell Publishing Ltd 23.12.1993; American Geophysical Union
• Subjects: Amplitudes; Doppler; Doppler effect; Earth, ocean, space; Exact sciences and technology; External geophysics; Geophysics; High resolution; Oscillations; Physics of the high neutral atmosphere; Satellites; Tides, waves, convection, winds, turbulence; Wavelengths; Amplitude; Thermosphere; UARS satellites; Phase; Oscillation; Upper atmosphere; Mesosphere; Atmospheric wave; Interferometry
• ISSN: 0094-8276; 1944-8007
• DOI: 10.1029/93GL03008

A strong westward traveling oscillation, with a period of 2 days and zonal wave number 3, is observed in the mesospheric and lower thermospheric winds from the High Resolution Doppler Imager (HRDI) on the Upper Atmosphere Research Satellite (UARS). The important events happen in January, July, and September/October, of which the occurrence in January is the strongest with an amplitude over 60 m/s. Detailed analyses for the periods of January 1992 and January 1993 reveal a cause-and-effect relationship in the wave developing process at 95 km. The global structures of the wave amplitude and phase are also presented.