Auroral observations with the Wind Imaging Interferometer (WINDII) on UARS
| Autor: | Gordon G. Shepherd, D. J. W. Kendall, Brian Solheim, Marianna Shepherd, Y. Rochon, R. L. Gattinger |
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| Rok vydání: | 1996 |
| Předmět: |
Physics
Atmospheric Science Aerospace Engineering Flux Astronomy and Astrophysics Scale height Astrophysics Atmospheric sciences Atmosphere Interferometry Geophysics Neutral atmosphere Volume (thermodynamics) Space and Planetary Science Magnitude (astronomy) Atomic oxygen General Earth and Planetary Sciences |
| Zdroj: | Advances in Space Research. 17:5-10 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/0273-1177(95)00724-s |
| Popis: | The WINDII imager on UARS provides measurements of the integral emission rate emitted from the atmosphere along the line-of-sight viewing the Earth's limb. The auroral OI 557.7 nm and the N2 1PG emissions are among various selected auroral emissions observed by WINDII. Simultaneous ground-based photometric measurements of the OI 557.7 nm and N2+ 1NG emissions from CANOPUS, when available, allow the derivation of volume emission rate profiles by the employment of a 2-D inversion method. Using the N2 1PG volume emission rate, which is proportional to the total energy flux, the OI 557.7 nm emission has been modelled and compared with the experimental OI 557.7 nm emission. The OI N 2 1PG emission rate ratios were interpreted in terms of atomic oxygen density. It is shown that [O] inferred from the experiment varies significantly in magnitude and scale height from the MSIS neutral atmosphere predictions. |
| Databáze: | OpenAIRE |
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