Physics
Scientific paper
Feb 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ge%26ae..49...85p&link_type=abstract
Geomagnetism and Aeronomy, Volume 49, Issue 1, pp.85-92
Physics
3
92.60.Hc
Scientific paper
The seasonal dependences of the response of the hydroxyl ((6-2) band) and molecular oxygen O2( b 1Σ{/g +}) ((0-1) band) emission intensities, temperature, and density indicator in the region of the hydroxyl emission maximum (87 km) to solar activity have been obtained based on the spectral observations of the mesopause emissions at Zvenigorod observatory during 2000-2007. The ratio of the OH (7-3) and (9-4) band intensities, characterizing the behavior of the vibrational temperature, has been used as an indicator of density. It has been established that the response of the studied mesopause characteristics to solar activity is positive in all seasons. In winter the response is maximal in the intensities and temperature and is minimal in the density indicator. The main mechanisms by which solar activity affects the mesopause characteristics have been considered. The behavior of the internal gravity waves with periods of 0.33-7 h depending on solar activity has been studied. It has been noted that these waves become more active at a minimum of the 11-year solar cycle.
Perminov V. I.
Pertsev Nikolay
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