Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2018GL077244 |
Earth's Correlation Wavefield: Late Coda Correlation | |
Pham, Thanh-Son; Tkalcic, Hrvoje; Sambridge, Malcolm; Kennett, Brian L. N. | |
2018-04-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:7页码:3035-3042 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | Cross correlation of seismograms provides new information on the Earth both through the exploitation of ambient noise and specific components of earthquake records. Here we cross-correlate recordings of large earthquakes on a planetary scale and identify a range of hitherto unobserved seismic phases in Earth's correlation wavefield. We show that both arrivals with the timing expected for the regular seismic wavefield and previously unexplained phases are produced by interference between seismic paths having the same ray parameter but with only a subset of propagation legs in common. This insight explains the origin and generation mechanism of the features of Earth's correlation wavefield and opens up new ways of addressing issues in global seismology. Strong similarity between observed and synthesized correlation wavefields indicates that the Earth's radial structure is remarkably well constrained in the intermediate period range. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435743400019 |
WOS关键词 | AMBIENT SEISMIC NOISE ; CROSS-CORRELATION ; GLOBAL-SCALE ; TRAVEL-TIMES ; BODY WAVES ; INTERFEROMETRY ; PHASES ; AUTOCORRELATION ; TOMOGRAPHY ; RETRIEVAL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/28523 |
专题 | 气候变化 |
作者单位 | Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia |
推荐引用方式 GB/T 7714 | Pham, Thanh-Son,Tkalcic, Hrvoje,Sambridge, Malcolm,et al. Earth's Correlation Wavefield: Late Coda Correlation[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(7):3035-3042. |
APA | Pham, Thanh-Son,Tkalcic, Hrvoje,Sambridge, Malcolm,&Kennett, Brian L. N..(2018).Earth's Correlation Wavefield: Late Coda Correlation.GEOPHYSICAL RESEARCH LETTERS,45(7),3035-3042. |
MLA | Pham, Thanh-Son,et al."Earth's Correlation Wavefield: Late Coda Correlation".GEOPHYSICAL RESEARCH LETTERS 45.7(2018):3035-3042. |
条目包含的文件 | 条目无相关文件。 |
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