DOI: 10.1002/2017JE005255
Scopus记录号: 2-s2.0-85046777413
论文题名: Parameterization of Rocket Dust Storms on Mars in the LMD Martian GCM: Modeling Details and Validation
作者: Wang C. ; Forget F. ; Bertrand T. ; Spiga A. ; Millour E. ; Navarro T.
刊名: Journal of Geophysical Research: Planets
ISSN: 21699097
出版年: 2018
卷: 123, 期: 4 起始页码: 982
结束页码: 1000
语种: 英语
英文关键词: detached dust layers
; LMD Martian GCM
; MCS
; parameterization
; rocket dust storm
Scopus关键词: computer simulation
; dust storm
; Mars
; model validation
; numerical model
; parameterization
; planetary atmosphere
; sediment transport
; wind field
英文摘要: The origin of the detached dust layers observed by the Mars Climate Sounder aboard the Mars Reconnaissance Orbiter is still debated. Spiga et al. (2013, https://doi.org/10.1002/jgre.20046) revealed that deep mesoscale convective “rocket dust storms” are likely to play an important role in forming these dust layers. To investigate how the detached dust layers are generated by this mesoscale phenomenon and subsequently evolve at larger scales, a parameterization of rocket dust storms to represent the mesoscale dust convection is designed and included into the Laboratoire de Météorologie Dynamique (LMD) Martian Global Climate Model (GCM). The new parameterization allows dust particles in the GCM to be transported to higher altitudes than in traditional GCMs. Combined with the horizontal transport by large-scale winds, the dust particles spread out and form detached dust layers. During the Martian dusty seasons, the LMD GCM with the new parameterization is able to form detached dust layers. The formation, evolution, and decay of the simulated dust layers are largely in agreement with the Mars Climate Sounder observations. This suggests that mesoscale rocket dust storms are among the key factors to explain the observed detached dust layers on Mars. However, the detached dust layers remain absent in the GCM during the clear seasons, even with the new parameterization. This implies that other relevant atmospheric processes, operating when no dust storms are occurring, are needed to explain the Martian detached dust layers. More observations of local dust storms could improve the ad hoc aspects of this parameterization, such as the trigger and timing of dust injection. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114211
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Laboratoire de Météorologie Dynamique/IPSL, Sorbonne Université, École Normale Supérieure, PSL Research University, École Polytechnique, CNRS, Paris, France; School of Geographic Sciences, East China Normal University, Shanghai, China; Shanghai Institute of Meteorological Science, Shanghai, China
Recommended Citation:
Wang C.,Forget F.,Bertrand T.,et al. Parameterization of Rocket Dust Storms on Mars in the LMD Martian GCM: Modeling Details and Validation[J]. Journal of Geophysical Research: Planets,2018-01-01,123(4)