| DOI: | 10.1002/grl.50371
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| 论文题名: | Using hydroacoustic stations as water column seismometers |
| 作者: | Yildiz S.; Sabra K.; Dorman L.M.; Kuperman W.A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8921
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| EISSN: | 1944-8652
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| 出版年: | 2013
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| 卷: | 40, 期:11 | | 起始页码: | 2573
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| 结束页码: | 2578
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| 语种: | 英语
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| 英文关键词: | array processing
; CTBTO
; hydroacoustics
; low frequency
; seismometer
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| Scopus关键词: | Broadband seismograms
; CTBTO
; Deep sound channels
; Hydrophone stations
; International monitoring systems
; low frequency
; seismometer
; Sumatra-Andaman earthquake
; Array processing
; Hydrophones
; Sea ice
; Seismographs
; Underwater acoustics
; Wave propagation
; Seismology
; data processing
; deep sea
; hydrophone
; iceberg
; ocean bottom seismometer
; seismic data
; Sumatra earthquake 2004
; water column
; wave propagation
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| 英文摘要: | Getting seismic data from the deep oceans usually involves ocean-bottom seismometers, but hydrophone arrays may provide a practical alternative means of obtaining vector data. We here explore this possibility using hydrophone stations of the International Monitoring System, which have been used to study icebergs and T-wave propagation among others. These stations consist of three hydrophones at about the depth of the deep sound channel in a horizontal triangle array with 2 km sides. We use data from these stations in the very low-frequency regime (0.01-0.05 Hz band) to demonstrate that these stations can also be used as water column seismometers. By differencing the acoustic pressure, we obtain vector quantities analogous to what a seismometer would record. Comparing processed hydrophone station records of the 2004 Great Sumatra-Andaman Earthquake with broadband seismograms from a nearby island station, we find that the differenced hydrophones are indeed a practical surrogate for seismometers. © 2013 American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879986869&doi=10.1002%2fgrl.50371&partnerID=40&md5=61a0b4c51025f9e295010fdfd563ba53
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6185
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Marine Physical Laboratory, Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA 92093-0238, United States
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| Recommended Citation: | |
Yildiz S.,Sabra K.,Dorman L.M.,et al. Using hydroacoustic stations as water column seismometers[J]. Geophysical Research Letters,2013-01-01,40(11).
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