Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087123 |
Temporal Variation and Frequency Dependence of Seismic Ambient Noise on Mars From Polarization Analysis | |
Suemoto, Yudai1; Ikeda, Tatsunori1,2; Tsuji, Takeshi1,2,3 | |
2020-06-15 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | We applied a polarization analysis of InSight seismic data to estimate the temporal variation and frequency dependence of the Martian ambient noise field. Low-frequency (<1 Hz)Pwaves show a diurnal variation in their dominant back azimuths that are apparently related to wind and the direction of sunlight in a distant area. Low-frequency Rayleigh waves (0.25-1 Hz) show diurnal variations and a dominant back azimuth related to the wind direction in a nearby area. Low-frequency signals that are derived mainly from wind may be sensitive to subsurface structure deeper than the lithological boundary derived from an autocorrelation analysis. On the other hand, dominant back azimuths of high-frequency (>1 Hz) waves point toward the InSight lander, especially in daytime, indicating that wind-induced lander noise is dominant at high frequencies. These results point to the presence of several ambient noise sources as well as geologic structure at the landing site. |
英文关键词 | InSight ambient noise polarization analysis autocorrelation function wind |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000551465400061 |
WOS关键词 | WIND ; REPRESENTATIONS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/276629 |
专题 | 气候变化 |
作者单位 | 1.Kyushu Univ, Dept Earth Resources Engn, Fukuoka, Fukuoka, Japan; 2.Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka, Japan; 3.Kyoto Univ, Disaster Prevent Res Inst, Kyoto, Japan |
推荐引用方式 GB/T 7714 | Suemoto, Yudai,Ikeda, Tatsunori,Tsuji, Takeshi. Temporal Variation and Frequency Dependence of Seismic Ambient Noise on Mars From Polarization Analysis[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(13). |
APA | Suemoto, Yudai,Ikeda, Tatsunori,&Tsuji, Takeshi.(2020).Temporal Variation and Frequency Dependence of Seismic Ambient Noise on Mars From Polarization Analysis.GEOPHYSICAL RESEARCH LETTERS,47(13). |
MLA | Suemoto, Yudai,et al."Temporal Variation and Frequency Dependence of Seismic Ambient Noise on Mars From Polarization Analysis".GEOPHYSICAL RESEARCH LETTERS 47.13(2020). |
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