Comparison of simulated gravity wave-driven mesospheric airglow fluctuations observed from the ground and space

✍ Scribed by J.J. Leko; M.P. Hickey; P.G. Richards

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 221 KB
• Volume: 64
• Category: Article
• ISSN: 1364-6826
• DOI: 10.1016/s1364-6826(01)00116-x

✦ Synopsis

This paper compares ground-based and space-based perspectives of wave perturbation of the O2 Atmospheric (0 -1) mesospheric airglow using a theoretical model. A wide range of gravity wave periods, tangent ray heights, and horizontal wavelengths of 200, 500, and 1000 km are compared for the space-and ground-based viewing geometries. The two di erent viewing geometries produce similar results for long-period waves for tangent ray heights that lie well below the emission layer peak. The magnitudes of the relative temperature and intensity uctuations for space-based observations behave similarly to those for ground-based observations. This work shows that observation of wave-induced nightglow uctuations should be no more di cult from space than from the ground for optimum viewing geometries.