DOI: 10.1002/2017JE005392
Scopus记录号: 2-s2.0-85046778001
论文题名: Solar Wind Access to Grains in the Upper Layer of Regolith
作者: Kulchitsky A.V. ; Hurley D.M. ; Johnson J.B. ; Duvoy P.X. ; Zimmerman M.
刊名: Journal of Geophysical Research: Planets
ISSN: 21699097
出版年: 2018
卷: 123, 期: 4 起始页码: 972
结束页码: 981
语种: 英语
英文关键词: discrete element method
; lunar regolith
; regolith
; solar wind
Scopus关键词: discrete element method
; Monte Carlo analysis
; Moon
; parameterization
; regolith
; solar wind
英文摘要: The surface of the Moon is exposed to the solar wind and the particles can reach a few average grains deep into the regolith. This work examines the depth of penetration of solar wind particles in lunar regolith using equations derived from analytical, Monte Carlo, and ray tracing techniques and discrete element method simulations. It is shown that the process can be approximately described using an exponential distribution function starting from some small depth with parameters depending on void ratio, solar wind incidence angle, and regolith grain size distribution. The proton implantation rate into the regolith as a function of depth is proposed with the coefficients computationally derived from Monte Carlo simulations of proton implantation process. ©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/114230
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Northern Engineering, University of Alaska Fairbanks, Fairbanks, AK, United States; Applied Physics Laboratory, The Johns Hopkins University, Baltimore, MD, United States
Recommended Citation:
Kulchitsky A.V.,Hurley D.M.,Johnson J.B.,et al. Solar Wind Access to Grains in the Upper Layer of Regolith[J]. Journal of Geophysical Research: Planets,2018-01-01,123(4)