Physics
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....9714911h&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A10, p. 14,911-14,922.
Physics
13
Annual Variations, Atmospheric Models, Gravity Waves, Hydroxyl Radicals, Latitude, Nightglow, Atmospheric Temperature, Mesopause, Turbulent Diffusion
Scientific paper
A model which incorporates extended OH-layer emission and gravity-wave dynamics with eddy diffusivities is set forth to analyze seasonal and latitudinal variations in the OH nightglow. The 2D analysis is aimed at determining the nature of the relationship between the oscillation in intensity about a mean intensity and the oscillation in temperature of the emission region about a mean temperature. Competing eddy diffusivities modify the local values and altitudes of maximum wave amplitude, so long-period characterization of the relationship is imprecise. Seasonal trends in the relationship are noted for periods of several hrs or less that are primarily related to seasonal changes in the mesopause undisturbed temperature. Latitudinal trends are shown to be less pronounced, and trends that exist at intermediate periods are difficult to isolate due to interference effects.
Hickey Michael P.
Schubert Gerald
Walterscheid Richard L.
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