Water heavily fractionated as it ascends on Mars as revealed by ExoMars/NOMAD
| dc.contributor.author | Villanueva, G.L. | |
| dc.contributor.author | Liuzzi, G. | |
| dc.contributor.author | Crismani, M.M.J. | |
| dc.contributor.author | Aoki, S. | |
| dc.contributor.author | Vandaele, A.C. | |
| dc.contributor.author | Daerden, F. | |
| dc.contributor.author | Smith, M.D. | |
| dc.contributor.author | Mumma, M.J. | |
| dc.contributor.author | Knutsen, E.W. | |
| dc.contributor.author | Neary, L. | |
| dc.contributor.author | Viscardy, S. | |
| dc.contributor.author | Thomas, I.R. | |
| dc.contributor.author | Lopez-Valverde, M.A. | |
| dc.contributor.author | Ristic, B. | |
| dc.contributor.author | Patel, M.R. | |
| dc.contributor.author | Holmes, J.A. | |
| dc.contributor.author | Bellucci, G. | |
| dc.contributor.author | Lopez-Moreno, J.J. | |
| dc.date | 2021 | |
| dc.date.accessioned | 2021-02-11T12:09:59Z | |
| dc.date.available | 2021-02-11T12:09:59Z | |
| dc.identifier.uri | https://orfeo.belnet.be/handle/internal/7716 | |
| dc.description | Isotopic ratios and, in particular, the water D/H ratio are powerful tracers of the evolution and transport of water on Mars. From measurements performed with ExoMars/NOMAD, we observe marked and rapid variability of the D/H along altitude on Mars and across the whole planet. The observations (from April 2018 to April 2019) sample a broad range of events on Mars, including a global dust storm, the evolution of water released from the southern polar cap during southern summer, the equinox phases, and a short but intense regional dust storm. In three instances, we observe water at very high altitudes (>80 km), the prime region where water is photodissociated and starts its escape to space. Rayleigh distillation appears the be the driving force affecting the D/H in many cases, yet in some instances, the exchange of water reservoirs with distinctive D/H could be responsible. | |
| dc.language | eng | |
| dc.title | Water heavily fractionated as it ascends on Mars as revealed by ExoMars/NOMAD | |
| dc.type | Article | |
| dc.subject.frascati | Physical sciences | |
| dc.audience | Scientific | |
| dc.source.title | Science Advances | |
| dc.source.volume | 7 | |
| dc.source.issue | 7 | |
| dc.source.page | eabc8843 | |
| Orfeo.peerreviewed | Yes | |
| dc.identifier.doi | 10.1126/sciadv.abc8843 |
