Physics
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3111111e&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 11, CiteID L11111
Physics
10
Meteorology And Atmospheric Dynamics: Mesospheric Dynamics, Meteorology And Atmospheric Dynamics: Middle Atmosphere Dynamics (0341, 0342), Meteorology And Atmospheric Dynamics: Waves And Tides
Scientific paper
Airglow imager and dynasonde/IDI radar wind measurements at Halley Station, Antarctica (76°S, 27°W) have been used to estimate the diurnal variation of the vertical fluxes of horizontal momentum carried by high-frequency atmospheric gravity waves. The cross-correlation coefficients between the vertical and horizontal wind perturbations were calculated from the sodium airglow imager data collected during four consecutive nights of near total darkness during July of 2000. These were combined with wind-velocity variances from coincident radar measurements to estimate the upper limit of the vertical flux of horizontal momentum during three-hour intervals throughout the period. The resulting momentum flux showed a marked semi-diurnal oscillation in the zonal and meridional components. Calculations of the momentum flux through the Na airglow show variations in period and phase consistent with the observations, implying that tidal propagation and modulated gravity-wave forcing may both affect observed wind variations.
Espy Patrick J.
Jones Owen L. G.
Swenson Gary R.
Tang Jie
Taylor Mary Jane
No associations
LandOfFree
Tidal modulation of the gravity-wave momentum flux in the Antarctic mesosphere does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Tidal modulation of the gravity-wave momentum flux in the Antarctic mesosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tidal modulation of the gravity-wave momentum flux in the Antarctic mesosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1756676