Accession Number : ADA083025


Title :   Theoretical Investigation of the Effects of Atmospheric Gravity Waves on the Hydroxyl Emissions of the Atmosphere.


Descriptive Note : Final rept. 15 Jul 78-30 Nov 79,


Corporate Author : CINCINNATI UNIV OHIO DEPT OF PHYSICS


Personal Author(s) : Tuan,Tai-Fu


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a083025.pdf


Report Date : 31 Dec 1979


Pagination or Media Count : 41


Abstract : The effect of gravity waves on OH emission is investigated using a gravity-wave model valid for an inhomogeneous atmosphere and computed as well as semi-empirical data for the 'undisturbed' ozone and hydrogen profiles. The results show that (1) the magnitude of the response depends on the relative magnitudes and signatures of the vertical and horizontal wave-induced diffusion. Since in some regions the horizontal velocity field of the gravity wave can increase much more rapidly with height than the vertical field, horizontal diffusion even when there is a relatively sharp layer gradient; and (2) The structures in the OH profile produced by the gravity wave are in general but not always more pronounced below the intensity peak than above. The observed dark areas in OH emission can be produced by gravity waves with vertical wave length small compared with the half width of the intensity profile. (Author)


Descriptors :   *HYDROXYL RADICALS , *GRAVITY WAVES , EMISSION , IONOSPHERE , DENSITY , HYDROGEN , PROFILES , DIFFUSION , OZONE


Subject Categories : Atmospheric Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE