Physics
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jatp...50..739m&link_type=abstract
Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 50, Aug. 1988, p. 739-748.
Physics
13
Atmospheric Temperature, Hydroxyl Emission, Mesopause, Nightglow, Annual Variations, Atmospheric Tides, Diurnal Variations
Scientific paper
The OH (6-2) band night airglow emissions have been observed from two sites at 60 and 70 deg N, respectively, in Norway during the December-April periods 1985-1986 and 1986-1987. Variations in rotational temperatures at about 90 km on time scales from tens of minutes to days show similar patterns as at 80 deg N. The semidiurnal tide is dominant with average peak to peak amplitudes of about 5 K over the observing periods. There is a negligible difference in average tidal amplitude at 60 and 70 deg N. The phase of the tide is changing slowly through the December-February period. The midwinter to early spring average temperatures are about 10 K higher than predicted by the CIRA 1972 90 km model atmosphere for the respective sites.
Harang Ove E.
Myrabo H. K.
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