DOI: 10.1002/2015GL066151
论文题名: Effects of lateral variations in megaregolith thickness on predicted lunar seismic signals
作者: Blanchette-Guertin J.-F. ; Johnson C.L. ; Lawrence J.F.
刊名: Geophysical Research Letters
ISSN: 0094-8354
EISSN: 1944-8085
出版年: 2015
卷: 42, 期: 23 起始页码: 10171
结束页码: 10178
语种: 英语
英文关键词: lunar geophysical network
; megaregolith
; Moon
; seismic scattering
Scopus关键词: Moon
; Seismic waves
; Surface scattering
; Epicentral distances
; Impact structures
; Interior structure
; Lateral variations
; megaregolith
; Scattering layer
; Seismic signals
; Synthetic seismogram
; Seismology
英文摘要: We use a modified phonon synthetic seismogram method to investigate the effects of laterally varying megaregolith thickness on the propagation of seismic energy and on the resulting seismic signals recorded at various epicentral distances from the source. We show that receivers located in large impact structures, with thin crust and thinner megaregolith, can record seismic signals that are less affected by high levels of scattering. In particular, receivers located away from the basin edge by a distance greater than or equal to the thickness of the surrounding megaregolith can record seismograms in which secondary arrivals containing important information about interior structure can be more readily identified. Seismic sources located beneath the near-surface scattering layer, such as deep lunar quakes, are also advantageous because the resulting seismograms are less affected by high levels of scattering than those from sources within the scattering layer or surface impacts. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953432773&doi=10.1002%2f2015GL066151&partnerID=40&md5=8215330171cdf7f3406c6b77da6900c8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7970
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Equipe Planétologie et Sciences Spatiales, Université Paris Diderot, Sorbonne Paris Cité, Institut de Physique du Globe de Paris, UMR 7154 CNRS, Paris, France
Recommended Citation:
Blanchette-Guertin J.-F.,Johnson C.L.,Lawrence J.F.. Effects of lateral variations in megaregolith thickness on predicted lunar seismic signals[J]. Geophysical Research Letters,2015-01-01,42(23).