Physics
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3714802v&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 14, CiteID L14802
Physics
2
Atmospheric Processes: Instruments And Techniques, Atmospheric Processes: Acoustic-Gravity Waves, Atmospheric Processes: Middle Atmosphere Dynamics (0341, 0342), Atmospheric Processes: Mesospheric Dynamics
Scientific paper
The ability of all-sky interferometric meteor radars to measure mean wind and high-frequency gravity wave wind perturbations from meteor radial velocities is assessed. A Monte-Carlo technique that models line-of-sight meteor wind measurements with realistic errors in angle-of-arrival and range is used to investigate uncertainties in mean wind and gravity wave wind parameters as a function of meteor echo rate. It is shown that mean horizontal wind speeds are recovered with reasonable accuracy at meteor rates as low as 10 hr-1. Mean-square horizontal wind perturbation can be derived with relatively little averaging, but $\overline{u\primew\prime momentum fluxes are recovered with much less accuracy, which means that considerable averaging is required to produce meaningful values. Results are illustrated using meteor wind radar observations taken over a 30-day period in January-February 2006 in Northern Australia.
Kovalam S.
Reid Iain M.
Vincent Anthony R.
Younger J. P.
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