Physics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsa21a..11w&link_type=abstract
American Geophysical Union, Spring Meeting 2005, abstract #SA21A-11
Physics
0310 Airglow And Aurora, 0340 Middle Atmosphere: Composition And Chemistry, 3384 Waves And Tides, 9315 Arctic Region
Scientific paper
Terrestrial nightglow emissions in the near infrared region have been monitored from several ground-based optical observatories in the northern high latitude; Eureka (80.0 N, 85.9 W), and Resolute Bay (74.68 N, 94.90 W), Canada. Spectral analysis of the derived rotational temperatures yields the periodicities of the atmospheric waves that are known to propagate upward from the lower atmosphere and perturb the airglow brightness and the rotational temperatures in the upper atmosphere. Spectral features at various periods are found and investigated in relation to atmospheric tides and planetary waves. The commonly observed features are waves near the tidal periods, i.e. 6, 8, and 12 hour oscillations. The data also show fluctuations at longer periods of 4-day and quasi-16 day waves. Harmonic analysis is also performed to seasonal data sets to identify the amplitudes and phase information of the major oscillations over season.
Azeem I.
Sivjee G. G.
Won Y.-
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