Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1782354 | Planetary and Space Science | 2008 | 11 Pages |
Abstract
The electron transport model, coupled with calculations of excitation processes is also applied to an analysis of the FUV oxygen day airglow observations made with PV-OUVS and the Hopkins Ultraviolet Telescope (HUT) spectrograph. Comparisons indicate that the model accounts for both the disc-averaged intensities observed with the HUT spectrograph, the limb scans and the 130.4-nm images obtained with PV-OUVS. The relative contribution of resonance scattering of the solar line and photoelectron impact to the excitation of the 130.4-nm triplet depends on the altitude, but is globally dominated by resonance scattering. The intensity of the 130.4-nm dayglow emission does not vary proportionally with the O density in the lower thermosphere, but provides nevertheless a useful tool to remotely probe the atomic oxygen density and its variations.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
J.-C. Gérard, B. Hubert, V.I. Shematovich, D.V. Bisikalo, G.R. Gladstone,