DOI: 10.1002/2014GL060523
论文题名: Anisotropic solar wind sputtering of the lunar surface induced by crustal magnetic anomalies
作者: Poppe A.R. ; Sarantos M. ; Halekas J.S. ; Delory G.T. ; Saito Y. ; Nishino M.
刊名: Geophysical Research Letters
ISSN: 0094-9912
EISSN: 1944-9643
出版年: 2014
卷: 41, 期: 14 起始页码: 4865
结束页码: 4872
语种: 英语
英文关键词: crustal anomalies
; lunar exosphere
; solar wind sputtering
Scopus关键词: Anisotropy
; Ionosphere
; Lunar missions
; Crustal anomalies
; Crustal magnetic anomalies
; Lunar exospheres
; Lunar prospectors
; Reflection efficiency
; Solar zenith angle
; Spatial and temporal variability
; Sputtering yields
; Solar wind
; anisotropy
; magnetic field
; mapping
; Moon
; regolith
; solar wind
; spatiotemporal analysis
英文摘要: The lunar exosphere is generated by several processes each of which generates neutral distributions with different spatial and temporal variability. Solar wind sputtering of the lunar surface is a major process for many regolith-derived species and typically generates neutral distributions with a cosine dependence on solar zenith angle. Complicating this picture are remanent crustal magnetic anomalies on the lunar surface, which decelerate and partially reflect the solar wind before it strikes the surface. We use Kaguya maps of solar wind reflection efficiencies, Lunar Prospector maps of crustal field strengths, and published neutral sputtering yields to calculate anisotropic solar wind sputtering maps. We feed these maps to a Monte Carlo neutral exospheric model to explore three-dimensional exospheric anisotropies and find that significant anisotropies should be present in the neutral exosphere depending on selenographic location and solar wind conditions. Better understanding of solar wind/crustal anomaly interactions could potentially improve our results. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904518679&doi=10.1002%2f2014GL060523&partnerID=40&md5=1673cdf28104049eb6a6a58d74ea4a38
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7176
Appears in Collections: 气候减缓与适应
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作者单位: Space Sciences Laboratory, University of California, Berkeley, CA, United States
Recommended Citation:
Poppe A.R.,Sarantos M.,Halekas J.S.,et al. Anisotropic solar wind sputtering of the lunar surface induced by crustal magnetic anomalies[J]. Geophysical Research Letters,2014-01-01,41(14).