Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL089630 |
Autocorrelation Reflectivity of Mars | |
Sizhuang Deng; Alan Levander | |
2020-08-04 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
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 ~35km, 1110‐1170 km, and 1520‐1600 km, consistent with other estimates. |
领域 | 气候变化 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/287702 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Sizhuang Deng,Alan Levander. Autocorrelation Reflectivity of Mars[J]. Geophysical Research Letters,2020. |
APA | Sizhuang Deng,&Alan Levander.(2020).Autocorrelation Reflectivity of Mars.Geophysical Research Letters. |
MLA | Sizhuang Deng,et al."Autocorrelation Reflectivity of Mars".Geophysical Research Letters (2020). |
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