Physics
Scientific paper
Oct 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jgr...10621517d&link_type=abstract
Journal of Geophysical Research, Volume 106, Issue A10, p. 21517-21524
Physics
8
Atmospheric Composition And Structure: Airglow And Aurora, Electromagnetics: Wave Propagation, Geodesy And Gravity: Regional And Global Gravity Anomalies And Earth Structure, Meteorology And Atmospheric Dynamics: Mesospheric Dynamics
Scientific paper
From a single image of a persistent trail left by a -1.5 magnitude Leonid meteor on November 17, 1998, the relative winds between 92.5 and 98 km altitude are derived, where the altitudes are determined by a sodium lidar. These are converted to true winds 82 sec after the appearance of the meteor by fixing the winds at 98 km to match the results of following the trail with the lidar for twelve minutes. The image and winds reveal a fine example of the effects of a gravity wave having a vertical wavelength of 5.50+/-0.02km, a horizontal wavelength of 2650+/-60km, an intrinsic period of 19.5+/-0.4 hours, and an observed period of 8.6+/-0.1 hours. Effects of the gravity wave are still present in the wind field 70 min later.
Chu Xinzhao
Drummond Jack D.
Gardner Chester S.
Grime Brent W.
Kane Timothy J.
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