Secular variations of OH nightglow emission and of the OH intensity-weighted temperature induced by gravity-wave forcing in the MLT region

Tai Yin Huang, Michael Hickey

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Secular variations of OH airglow (8,3) band and of the intensity-weighted temperature induced by a gravity wave packet at three latitudes in the northern hemisphere in the Mesosphere/Lower Thermosphere region are investigated using a 2-D, time-dependent, fully nonlinear OH chemistry-dynamics model. A net-cycled average survives due to wave transience and dissipation. The integrated OH (8,3) volume emission rates show a 20 percent increase induced by the wave packet. The corresponding intensity-weighted temperature shows an initial increase up to 2 percent then a gradual decrease for the remainder of the simulation time by the same wave packet. These secular variations could be mistaken as long-period or short-period waves in the airglow observations. Therefore, care must be taken when analyzing the data from observations.

Original languageEnglish (US)
Pages (from-to)1478-1487
Number of pages10
JournalAdvances in Space Research
Volume41
Issue number9
DOIs
StatePublished - 2008

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science
  • Earth and Planetary Sciences(all)

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