Physics
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agusmsa52a..04a&link_type=abstract
American Geophysical Union, Spring Meeting 2007, abstract #SA52A-04
Physics
0310 Airglow And Aurora, 3332 Mesospheric Dynamics, 3389 Tides And Planetary Waves
Scientific paper
OH ariglow temperature measurements have been monitored from Resolute Bay (74.68º N, 94.90º W), Canada in the Arctic high latitude and South Pole (90º S) in the Antarctic high latitude region. Temperature measurements at both locations are derived from identical Michelson interferometer (MI) instruments operating continuously (24 hours) during winter season. For this study, we have used multi-year data base for the two sites and performed spectral analysis to retrieve wave characteristics (amplitude and phase information). From the Lomb-Scargle spectral analysis to the measured temperatures, dominant oscillations are found at various periods near tidal frequency, i.e. 8, 12, and 24 hour. Because of periods and persistence, the observed oscillations in temperature are most likely of tidal origin. Results will be discussed in the context of short variability and long term modulation of these tidal components.
Azeem I.
Sivjee G. G.
Won Y.-
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