气候变化领域集成服务门户(CCPortal): Autocorrelation Reflectivity of Mars

CCPortal

DOI	10.1029/2020GL089630
	Autocorrelation Reflectivity of Mars
	Deng S.; Levander A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	The seismic structure of the Martian interior can shed light on the formation and dynamic evolution of the planet and our solar system. The deployment of the seismograph carried by the InSight mission provides a means to study Martian internal structure. We used ambient noise autocorrelation to analyze the available vertical component seismic data to recover the reflectivity beneath the Insight lander. We identify the noise that is approximately periodic with the Martian sol as daily lander operations and the diurnal variation in Martian weather and tides. To investigate the seismic discontinuities at different depths, the autocorrelograms are filtered and stacked into different frequency bands. We observe prominent reflection signals probably corresponding to the Martian Moho, the olivine-wadsleyite transition in the mantle, and the core-mantle boundary in the stacked autocorrelograms. We estimate the depths of these boundaries as ~35, 1,110–1,170, and 1,520–1,600 km, consistent with other estimates. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Autocorrelation; Earth (planet); Reflection; Silicate minerals; Sols; Core-mantle boundary; Different frequency; Diurnal variation; Dynamic evolution; Internal structure; Seismic discontinuities; Seismic structure; Vertical component; Seismology; ambient noise; autocorrelation; core-mantle boundary; diurnal variation; Mars; seismic data; seismograph
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169871
作者单位	Department of Earth, Environmental and Planetary Sciences, Rice University, Houston, TX, United States
推荐引用方式 GB/T 7714	Deng S.,Levander A.. Autocorrelation Reflectivity of Mars[J],2020,47(16).
APA	Deng S.,&Levander A..(2020).Autocorrelation Reflectivity of Mars.Geophysical Research Letters,47(16).
MLA	Deng S.,et al."Autocorrelation Reflectivity of Mars".Geophysical Research Letters 47.16(2020).