OH-asterisk (7-5) Meinel band dayglow and nightglow measured by the SME limb scanning near infrared spectrometer - Comparison of the observed seasonal variability with two-dimensional model simulations

Details OH-asterisk (7-5) Meinel band dayglow and nightglow measured by the SME limb scanning near infrared spectrometer - Comparison of the observed seasonal variability with two-dimensional model simulations OH-asterisk (7-5) Meinel band dayglow and nightglow measured by the SME limb scanning near infrared spectrometer - Comparison of the observed seasonal variability with two-dimensional model simulations

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989angeo...7..365l&link_type=abstract

Annales Geophysicae (ISSN 0980-8752), vol. 7, Aug. 1989, p. 365-374. Research supported by NASA.

Physics

12

Annual Variations, Dayglow, Hydroxyl Emission, Nightglow, Two Dimensional Models, Atmospheric Models, Environment Simulation, Infrared Spectrometers, Mesosphere, Near Infrared Radiation, Solar Mesosphere Explorer

Scientific paper

Seasonal variations of the OH-asterisk (7-5) mesospheric hydroxyl emission at 1.89 microns observed by the SME near-IR spectrometer are compared with the theoretical predictions of a two-dimensional dynamical/chemical model. The good agreement found at low latitudes for both dayglow and nightglow provides support for the model assumption that breaking gravity waves induce seasonal and latitudinal variations in diffusion. The seasonal behavior of atomic hydrogen in the upper mesosphere (related to vertical transport) and/or uncertainties in the OH Meinel band parameters are proposed as possible explanations for the discrepancy noted between model and observational data for the middle latitudes.

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