| DOI: | 10.1002/2015GL067259
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| 论文题名: | Ultra-long-range hydroacoustic observations of submarine volcanic activity at Monowai, Kermadec Arc |
| 作者: | Metz D.; Watts A.B.; Grevemeyer I.; Rodgers M.; Paulatto M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9364
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| EISSN: | 1944-9095
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| 出版年: | 2016
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| 卷: | 43, 期:4 | | 起始页码: | 1529
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| 结束页码: | 1536
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| 语种: | 英语
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| 英文关键词: | CTBTO
; Hydroacoustics
; Monowai
; T phase
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| Scopus关键词: | Direction of arrival
; Oceanography
; Submarines
; Volcanoes
; Acoustic parabolic equation
; Comprehensive Nuclear-Test-Ban Treaty
; CTBTO
; International monitoring systems
; Monowai
; Naturally occurring
; Sound fixing and ranging channels
; T-phase
; Underwater acoustics
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| 英文摘要: | Monowai is an active submarine volcanic center in the Kermadec Arc, Southwest Pacific Ocean. During May 2011, it erupted over a period of 5 days, with explosive activity directly linked to the generation of seismoacoustic T phases. We show, using cross-correlation and time-difference-of-arrival techniques, that the eruption is detected as far as Ascension Island, equatorial South Atlantic Ocean, where a bottom moored hydrophone array is operated as part of the International Monitoring System of the Comprehensive Nuclear-Test-Ban Treaty Organization. Hydroacoustic phases from the volcanic center must therefore have propagated through the Sound Fixing and Ranging channel in the South Pacific and South Atlantic Oceans, a source-receiver distance of ~15,800 km. We believe this to be the furthest documented range of a naturally occurring underwater signal above 1 Hz. Our findings, which are consistent with observations at regional broadband stations and long-range, acoustic parabolic equation modeling, have implications for submarine volcano monitoring. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84973571887&doi=10.1002%2f2015GL067259&partnerID=40&md5=e4fa57699a840b8dcfb0f05a8b46cb76
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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/10327
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Earth Sciences, University of Oxford, Oxford, United Kingdom
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| Recommended Citation: | |
Metz D.,Watts A.B.,Grevemeyer I.,et al. Ultra-long-range hydroacoustic observations of submarine volcanic activity at Monowai, Kermadec Arc[J]. Geophysical Research Letters,2016-01-01,43(4).
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