| タイトル | Measurements of C02 Distribution in Saturn's Atmosphere by Cassini-Infrared Observations |
| 本文（外部サイト） | http://hdl.handle.net/2060/20130013042 |
| 著者（英） | Woodard, E.; Abbas, M. M.; Flasar, M.; Young, M.; Stanbro, M.; LeClair, A. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 2013-03-18 |
| 言語 | eng |
| 内容記述 | The Fourier transform infrared spectrometer aboard the Cassini spacecraft, inserted in Saturn s orbit in July 2004, has been providing high resolution/high sensitivity infrared (IR) spectra of the Saturnian system. The measurements cover the spectral range of 10-1400/cm with variable spectral resolutions of 0.53 to 15/cm, exhibiting spectral features of a series of trace gases including CO2 and H2O. The observed spectra may be analyzed for retrieval of global P/T and gas density profiles of Saturn. The infrared measurements of Saturn by ISO(SWS) have indicated unexpected large abundances of CO2 in Saturn's atmosphere. The rigorous photochemical models of Saturn's atmosphere that have been developed indicate exogenic oxygen influx of icy dust grains that lead to the production of CO2. The distribution of CO2 in Saturn's atmosphere needs to be confirmed, and the nature of exogenic sources remains to be investigated. This paper presents comprehensive measurements of the CO2 distribution in Saturn's atmosphere by Cassini IR observations. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| レポートNO | M13-2403 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
|
