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Study of H2O and CO in Martian atmosphere with PFS/MEX data
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sindoni, Giampiero Formisano, Vittorio |
| Copyright Year | 2010 |
| Abstract | Abstract The Planetary Fourier Spectrometer (PFS) on board of the Mars Express orbiter can sound the Martian atmosphere. The retrieval of the water vapour and o f the carbon monoxide abundances is obtained from the analysis of the 3845 cm -1 (2.6 m) and the 4235 cm -1 (2.36 m) absorption bands, respectively. Mapping the seasonal and geographical distribution of these two atmospheric gaseous species, we found the expected behaviour, measuring a mean water vapour mixing ratio of 127 ppm and a mean carbon monoxide mixing ratio of 991 ppm. 1. Introduction In the history of the Mars exploration its atmosphe re and planetary climatology has from time aroused particular interest. In the study of the minor gas abundance in the Martian CO 2 atmosphere, the water vapour assumes particular importance, both because it is the most variable trace gas, and because it i s involved in several processes characterizing the planetary atmosphere. The water vapour photolysis regulates the Martian atmosphere photochemistry, and so it is strictly bounded to the carbon monoxide. The CO study is very important for the so called “atmosphere stabil ity problem” [1] (the whole CO |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://meetingorganizer.copernicus.org/EGU2010/EGU2010-3368.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
