globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo3008
论文题名:
Snow precipitation on Mars driven by cloud-induced night-time convection
作者: Spiga A.; Hinson D.P.; Madeleine J.-B.; Navarro T.; Millour E.; Forget F.; Montmessin F.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2017
卷: 10, 期:9
起始页码: 652
结束页码: 657
语种: 英语
Scopus关键词: atmospheric convection ; atmospheric plume ; Mars ; Martian atmosphere ; numerical method ; precipitation (climatology) ; seasonal variation ; sedimentation ; snow ; snow accumulation ; spacecraft ; water vapor
英文摘要: Although it contains less water vapour than Earth's atmosphere, the Martian atmosphere hosts clouds. These clouds, composed of water-ice particles, influence the global transport of water vapour and the seasonal variations of ice deposits. However, the influence of water-ice clouds on local weather is unclear: it is thought that Martian clouds are devoid of moist convective motions, and snow precipitation occurs only by the slow sedimentation of individual particles. Here we present numerical simulations of the meteorology in Martian cloudy regions that demonstrate that localized convective snowstorms can occur on Mars. We show that such snowstorms-or ice microbursts-can explain deep night-time mixing layers detected from orbit and precipitation signatures detected below water-ice clouds by the Phoenix lander. In our simulations, convective snowstorms occur only during the Martian night, and result from atmospheric instability due to radiative cooling of water-ice cloud particles. This triggers strong convective plumes within and below clouds, with fast snow precipitation resulting from the vigorous descending currents. Night-time convection in Martian water-ice clouds and the associated snow precipitation lead to transport of water both above and below the mixing layers, and thus would affect Mars' water cycle past and present, especially under the high-obliquity conditions associated with a more intense water cycle. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.
Citation statistics:
被引频次[WOS]:29   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/105719
Appears in Collections:气候减缓与适应
科学计划与规划

Files in This Item:

There are no files associated with this item.


作者单位: Laboratoire de Météorologie Dynamique, Institut Pierre-Simon Laplace, Sorbonne Universités, UPMC Univ. Paris 06, PSL Research University, École Normale Supérieure, Université Paris-Saclay, École Polytechnique, Centre National de la Recherche Scientifique, Paris, France; Stanford University, Stanford, CA, United States; SETI Institute, Mountain View, CA, United States; Laboratoire A Tmosphère Milieux Observations Spatiales, Institut Pierre-Simon Laplace (LATMOS/IPSL), Sorbonne Universités, UPMC Univ. Paris 06, Université Paris-Saclay, Université de Versailles Saint-Quentin-en-Yvelines, Centre National de la Recherche Scientifique, Guyancourt, France

Recommended Citation:
Spiga A.,Hinson D.P.,Madeleine J.-B.,et al. Snow precipitation on Mars driven by cloud-induced night-time convection[J]. Nature Geoscience,2017-01-01,10(9)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Spiga A.]'s Articles
[Hinson D.P.]'s Articles
[Madeleine J.-B.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Spiga A.]'s Articles
[Hinson D.P.]'s Articles
[Madeleine J.-B.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Spiga A.]‘s Articles
[Hinson D.P.]‘s Articles
[Madeleine J.-B.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.