globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL061377
论文题名:
Detection of detached dust layers in the Martian atmosphere from their thermal signature using assimilation
作者: Navarro T.; Forget F.; Millour E.; Greybush S.J.
刊名: Geophysical Research Letters
ISSN: 0094-9717
EISSN: 1944-9448
出版年: 2014
卷: 41, 期:19
起始页码: 6620
结束页码: 6626
语种: 英语
英文关键词: assimilation ; atmosphere ; dust ; Mars
Scopus关键词: Climate models ; Dust ; Earth atmosphere ; Martian surface analysis ; Weather forecasting ; assimilation ; Direct observations ; Global climate model ; Mars ; Optimal combination ; Temperature information ; Temperature profiles ; Thermal structure of the Martian atmosphere ; Atmospheric temperature ; air temperature ; data assimilation ; dust ; estimation method ; Martian atmosphere ; mixing ratio
英文摘要: Airborne dust modifies the thermal structure of the Martian atmosphere. The Mars Climate Sounder (MCS) first revealed local maxima of dust mass mixing ratio detached from the surface, not reproduced by global climate models (GCM). In this paper, the thermal signature of such detached layers is detected using data assimilation, an optimal combination of a GCM and observations. As dust influences the atmospheric temperatures, MCS temperature profiles are used to estimate the amount of dust in the atmosphere. Data assimilation of only MCS temperature information reproduces detached dust layers, independently confirming MCS's direct observations of dust. The resulting analyzed state has a smaller bias than an assimilation that does not estimate dust. This makes it a promising technique for Martian data assimilation, which is intended to support weather forecasting and weather research on Mars. Key Points Dust field is reconstructed from its thermal signature onlyInclusion of detached dust layers in model produces better temperatureDust improves Martian temperature data assimilation ©2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911127068&doi=10.1002%2f2014GL061377&partnerID=40&md5=a3c83085ad1a3b42ff7f73d93edc9475
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6981
Appears in Collections:气候减缓与适应

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作者单位: Laboratoire de Météorologie Dynamique, CNRS/UPMC/IPSL, Paris, France

Recommended Citation:
Navarro T.,Forget F.,Millour E.,et al. Detection of detached dust layers in the Martian atmosphere from their thermal signature using assimilation[J]. Geophysical Research Letters,2014-01-01,41(19).
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