Altitude profiles of (a) neutral density ratio, (b) neutral pressure ratio, (c) neutral temperature ratio, (d) zonal speed, (e) vertical wind speed, and (f) vertical wind wavelength for AW and GW wave mode. The input parameters are τ = 4.2 min, λ_h = 80 km, $k_z^l=0.11$ km⁻¹, and c_p = 321 m s⁻¹ for the AW mode and are τ = 39.4 min, λ_h = 210 km, $k_z^l=-0.07$ km⁻¹, and c_p = 89 m s⁻¹ for the GW mode. The maximum amplitude of neutral density ratio, ρ_max, is fixed at 10%. The wave azimuth angle, φ, is assumed to be 90° for both AW and GW wave modes.