Other
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa23a1778s&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SA23A-1778
Other
[0300] Atmospheric Composition And Structure, [0310] Atmospheric Composition And Structure / Airglow And Aurora, [0358] Atmospheric Composition And Structure / Thermosphere: Energy Deposition, [6245] Planetary Sciences: Solar System Objects / Meteors
Scientific paper
A fireball meteor with a visual magnitude of over -6 and a persistent trail were observed by two all-sky cameras for detecting the aurora and sodium airglow at Syowa Station, Antarctica. Orbit and other parameters of the fireball were estimated by an all-sky television camera for detecting the aurora. Two interesting structures were captured in the all-sky sodium airglow imager after the event: one was a ring structure that expanded to a diameter of 50 km in 9 minutes. The other consisted of two sets of planar waves aligned with the meteor orbit, observed approximately 9 minutes after the fireball. The former was identified as a persistent meteor trail distorted by the background with vertical shear. The latter are likely gravity waves. Here we provide a detailed report of these observations, on the circular structure, and on the vertical structure of the underlying background wind which caused this expanding ring.
Fujiwara Yasuhiro
Nakamura Takashi
Suzuki Hiroshi
Taguchi Makoto
Tsutsumi Makoto
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