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Effect of internal gravity waves upon night airglow temperatures
Author(s) -
Noxon J. F.
Publication year - 1978
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl005i001p00025
Subject(s) - airglow , internal wave , amplitude , oscillation (cell signaling) , physics , gravity wave , gravitational wave , atmospheric sciences , phase (matter) , range (aeronautics) , geophysics , mechanics , astrophysics , optics , materials science , chemistry , biochemistry , quantum mechanics , composite material
Large quasi‐periodic fluctuations are observed simultaneously in the rotational temperature of the nightglow emission from both O 2 (¹Σ g ) and OH. The fluctuation amplitude usually is several times larger in the former and the O 2 (¹Σ g ) fluctuations often lead those of OH in phase. This behavior is consistent with that expected for internal gravity waves propagating upward over the ˜ 10 km vertical separation between the two emission layers. The most prominent periods are 1‐2 hours and the full range of oscillation in temperature at 95 km sometimes approaches 100° K.