Gravity waves from five simultaneous emissions: OH(6-2), NaD, O<SUB>2</SUB>(<SUP>1</SUP>Σ) OI-557-7 nm, and the visible continuum

DOI: 
10.1139/p85-092
Publication date: 
01/05/1985
Main author: 
Molina, A.
IAA authors: 
Lopez-Moreno, J. J.;Rodrigo, R.
Authors: 
Molina, A.;Lopez-Puertas, M.;Lopez-Moreno, J. J.;Rodrigo, R.
Journal: 
Canadian Journal of Physics
Publication type: 
Article
Volume: 
63
Pages: 
592-599
Abstract: 
Simultaneous data from five atmospheric emissions - OH (6-2), NaD, O2 (1Sigma), O I (557.7 nm), and the visible continuum have been used to obtain values of the parameters related to gravity waves. Expressions devoted to obtaining values for the proportionality factors between intensity oscillations of each emission and the induced atmospheric density variations are proposed. The linear theory has been used to obtain results about induced velocities, temperature variations, and the kinetic-energy density. The different heights of emission layers make it possible to analyze the vertical propagation of the gravity waves. The estimated induced velocities are compared with those derived by using the amplitude-increase factor from the linear theory. This comparison shows the behavior of the amplitude following the linear theory for altitudes below 88-90 km and a deviation from the exponential growth for altitudes above 90 km owing to dissipative effects.
Database: 
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/1985CaJPh..63..592M/abstract
ADS Bibcode: 
1985CaJPh..63..592M
Keywords: 
Continuous Spectra;D Lines;Emission Spectra;Gravity Waves;Hydroxyl Emission;Nightglow;Oxygen Spectra;Sodium;Visible Spectrum;Annual Variations;Atmospheric Density;Atmospheric Temperature;Kinetic Energy;Wind Velocity;Geophysics