Strong water isotopic anomalies in the martian atmosphere: Probing current and ancient reservoirs
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- G. L. Villanueva
- NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
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- M. J. Mumma
- NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
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- R. E. Novak
- Iona College, New Rochelle, NY 10801, USA.
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- H. U. Käufl
- European Southern Observatory, Munich, Germany.
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- P. Hartogh
- Max Planck Institute for Solar System Research, Katlenburg-Lindau 37191, Germany.
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- T. Encrenaz
- Observatoire de Paris-Meudon, Meudon 92195, France.
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- A. Tokunaga
- University of Hawaii-Manoa, Honolulu, HI 96822, USA.
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- A. Khayat
- University of Hawaii-Manoa, Honolulu, HI 96822, USA.
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- M. D. Smith
- NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
書誌事項
- 公開日
- 2015-04-10
- 権利情報
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- http://www.sciencemag.org/about/science-licenses-journal-article-reuse
- DOI
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- 10.1126/science.aaa3630
- 公開者
- American Association for the Advancement of Science (AAAS)
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説明
<jats:title>Mapping Mars' water history</jats:title> <jats:p> We know the water cycle on Earth is complex. Neither is it simple on Mars. Infrared maps of water isotopes made by Villanueva <jats:italic>et al.</jats:italic> show the distribution of H <jats:sub>2</jats:sub> O and “semiheavy” water (HDO: deuterated water containing a mixture of hydrogen isotopes) across Mars. HDO enrichment varies with time and location; for example, irregular isotopic signals associate with different terrain features. The measurements also allow seasonal sublimation levels of the northern ice cap to be estimated and thus could be used to reveal past climate behavior. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6231" page="218" related-article-type="in-this-issue" vol="348" xlink:href="10.1126/science.aaa3630">218</jats:related-article> </jats:p>
収録刊行物
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- Science
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Science 348 (6231), 218-221, 2015-04-10
American Association for the Advancement of Science (AAAS)