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DOI | 10.1038/s41561-019-0379-6 |
High-altitude water ice cloud formation on Mars controlled by interplanetary dust particles | |
Hartwick, V. L.1; Toon, O. B.1; Heavens, N. G.2,3 | |
2019-07-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:7页码:516-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Submicrometre-size meteoric smoke aggregates form when interplanetary dust particles ablate and re-coagulate in the Martian atmosphere. The MAVEN (Mars Atmosphere and Volatile Evolution) satellite has detected pervasive ionized metallic layers due to meteor ablation at an 80-90 km altitude, which suggests a continuous supply of meteoric smoke particles that settle to lower altitudes. Until now, meteoric smoke has been neglected in general circulation model studies of the formation of Martian water ice clouds. Here we show that when meteoric smoke is included in simulations of the atmospheric circulation on Mars, mesospheric water ice clouds form at low pressures and in discrete layers, polar hood clouds extend to higher altitudes and the seasonal Hadley cell is weakened. Furthermore, we find that the middle atmosphere water ice clouds respond to and influence the diurnal and semidiurnal migrating thermal tides. We conclude that Mars atmospheric simulations that neglect meteoric smoke do not reproduce the observed spatial distribution of water ice clouds and miss crucial radiative impacts on the overall atmospheric dynamics. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000473104300007 |
WOS关键词 | GENERAL-CIRCULATION MODEL ; THERMAL TIDES ; MARTIAN ATMOSPHERE ; SEMIDIURNAL TIDE ; CO2 ; CLIMATOLOGY ; SIMULATIONS ; ULTRAVIOLET ; NUCLEATION ; EXPRESS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/184802 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Colorado, Dept Atmospher & Ocean Sci, Lab Atmospher & Space Phys, Boulder, CO 80309 USA; 2.Hampton Univ, Dept Atmospher & Planetary Sci, Hampton, VA 23668 USA; 3.Space Sci Inst, Boulder, CO USA |
推荐引用方式 GB/T 7714 | Hartwick, V. L.,Toon, O. B.,Heavens, N. G.. High-altitude water ice cloud formation on Mars controlled by interplanetary dust particles[J]. NATURE GEOSCIENCE,2019,12(7):516-+. |
APA | Hartwick, V. L.,Toon, O. B.,&Heavens, N. G..(2019).High-altitude water ice cloud formation on Mars controlled by interplanetary dust particles.NATURE GEOSCIENCE,12(7),516-+. |
MLA | Hartwick, V. L.,et al."High-altitude water ice cloud formation on Mars controlled by interplanetary dust particles".NATURE GEOSCIENCE 12.7(2019):516-+. |
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