High frequency gravity waves observed in OH airglow at Starfire Optical Range, NM: Seasonal variations in momentum flux

Details High frequency gravity waves observed in OH airglow at Starfire Optical Range, NM: Seasonal variations in momentum flux High frequency gravity waves observed in OH airglow at Starfire Optical Range, NM: Seasonal variations in momentum flux

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29t..27t&link_type=abstract

Geophysical Research Letters, Volume 29, Issue 20, pp. 27-1, CiteID 1966, DOI 10.1029/2002GL015794

Physics

10

Meteorology And Atmospheric Dynamics: Waves And Tides, Meteorology And Atmospheric Dynamics: Middle Atmosphere Dynamics (0341, 0342), Atmospheric Composition And Structure: Airglow And Aurora, Meteorology And Atmospheric Dynamics: Remote Sensing

Scientific paper

Airglow imager and Na wind/temperature lidar measurements at Starfire Optical Range, New Mexico (35°N, 107°W) are used to estimate the seasonal variation of the vertical fluxes of horizontal momentum carried by high frequency Atmospheric Gravity Waves (AGWs). The cross-correlation coefficients between the vertical and horizontal wind perturbations were calculated from the OH airglow imager data collected during 32 nights in 1998, 1999 and 2000. The RMS wind velocities were deduced from the lidar measurements. The combined information was used to estimate the upper limit of the momentum flux. The meridional component of the vertical flux of horizontal momentum was observed to be towards the summer pole. The zonal component had westward preference in winter and weak preference in summer. The unanticipated large meridional component may act to regulate the summer to winter circulation in the mesosphere.

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