The SFWM [Hickey et al., 2000], provided by Hickey, can be used to simulate transient, dissipative gravity wave packets.  The wave solution as a function of time and altitude is then input to our airglow chemistry models to study gravity waves-airglow interaction. The SFWM solves for and outputs wave-perturbed quantities: u’ (horizontal velocity), w’ (vertical velocity), T’ (temperature), and ρ’ (major gas density).  Effects of eddy and molecular diffusion of heat and momentum, and the Coriolis force are included in the model to account for the realistic condition of the atmosphere. The wave source is currently set at 10-km altitude, and it can be changed depending on the source height. The envelope of the wave-packet amplitude grows in altitude until it reaches a maximum value that meets the Orlanski and Bryan [1969] conditions, then it starts to decrease due to dissipation.