Physics
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsa42b..02t&link_type=abstract
American Geophysical Union, Spring Meeting 2002, abstract #SA42B-02
Physics
3334 Middle Atmosphere Dynamics (0341, 0342), 3360 Remote Sensing, 3384 Waves And Tides, 0310 Airglow And Aurora, 0394 Instruments And Techniques
Scientific paper
The technique of using airglow imager data and lidar wind data to estimate the vertical fluxes of horizontal momentum in the mesopause region provides an indirect measurement of momentum flux produced by atmospheric gravity waves (AGWs). In this paper, we apply this technique to OH imager data collected during thirty-two nights in 1998, 1999 and 2000 at the Starfire Optical Range (SOR), New Mexico (35oN, 107o W). The summer-winter seasonal trend of the cross-correlation coefficients between the vertical and horizontal wind perturbations is calculated from the imager data. The RMS wind velocities are deduced from the Na wind/temperature lidar measurements. The combined information from both observations is used to derive the trend of momentum flux. The meridional flux of horizontal momentum is dominated by a northward component in summer and southward in winter. There is a strong component of westward momentum in winter and weak in summer.
Liu Alex
Swenson Gary R.
Tang Jie
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