globalchange  > 科学计划与规划
DOI: 10.1002/2015GL065284
论文题名:
Ross ice shelf vibrations
作者: Bromirski P.D.; Diez A.; Gerstoft P.; Stephen R.A.; Bolmer T.; Wiens D.A.; Aster R.C.; Nyblade A.
刊名: Geophysical Research Letters
ISSN: 0094-9329
EISSN: 1944-9060
出版年: 2015
卷: 42, 期:18
起始页码: 7589
结束页码: 7597
语种: 英语
英文关键词: dispersed gravity wave arrivals ; flexural waves ; infragravity waves ; ocean wave-ice shelf interactions ; polarization analysis ; Rayleigh-Lamb waves
Scopus关键词: Elastic waves ; Frequency bands ; Gravity waves ; Interlocking signals ; Oceanography ; Polarization ; Surface waves ; Water waves ; Dispersed gravity wave arrivals ; Ice shelves ; Infra-gravity waves ; Polarization analysis ; Rayleigh-Lamb waves ; Ice ; flexure ; ice shelf ; ocean wave ; particle motion ; polarization ; Rayleigh number ; seismic data ; vibration ; Antarctica ; Pacific Ocean ; Pacific Ocean (North) ; Ross Ice Shelf ; West Antarctica
英文摘要: Broadband seismic stations were deployed across the Ross Ice Shelf (RIS) in November 2014 to study ocean gravity wave-induced vibrations. Initial data from three stations 100-km from the RIS front and within 10-km of each other show both dispersed infragravity (IG) wave and ocean swell-generated signals resulting from waves that originate in the North Pacific. Spectral levels from 0.001 to 10-Hz have the highest accelerations in the IG band (0.0025-0.03-Hz). Polarization analyses indicate complex frequency-dependent particle motions, with energy in several frequency bands having distinctly different propagation characteristics. The dominant IG band signals exhibit predominantly horizontal propagation from the north. Particle motion analyses indicate retrograde elliptical particle motions in the IG band, consistent with these signals propagating as Rayleigh-Lamb (flexural) waves in the ice shelf/water cavity system that are excited by ocean wave interactions nearer the shelf front. © 2015 American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945487729&doi=10.1002%2f2015GL065284&partnerID=40&md5=ff81588399832519d35455e3338d24c3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8944
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: Scripps Institution of Oceanography, University of California San Diego, San Diego, CA, United States

Recommended Citation:
Bromirski P.D.,Diez A.,Gerstoft P.,et al. Ross ice shelf vibrations[J]. Geophysical Research Letters,2015-01-01,42(18).
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