globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2017.04.001
Scopus记录号: 2-s2.0-85018557073
论文题名:
A modelling comparison between received sound levels produced by a marine Vibroseis array and those from an airgun array for some typical seismic survey scenarios
作者: Duncan A.J.; Weilgart L.S.; Leaper R.; Jasny M.; Livermore S.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 119, 期:1
起始页码: 277
结束页码: 288
语种: 英语
英文关键词: Airgun alternative ; Marine vibrator ; Marine Vibroseis ; Noise ; Quieting technology ; Seismic survey
Scopus关键词: Environmental impact ; Geological surveys ; Seismology ; Surveys ; Air guns ; Higher frequencies ; Noise ; Reduced bandwidths ; Seismic surveys ; Sound exposure levels ; Sound pressure level ; Vibroseis ; Produced Water ; array ; comparative study ; modeling ; seismic noise ; seismic source ; seismic survey ; vibroseis ; Article ; controlled study ; deep ; environmental management ; exposure variable ; marine Vibroseis array ; mathematical analysis ; mathematical model ; mathematical parameters ; mechanics ; shallow ; slope ; sound ; sound pressure ; vibration sense ; workshop ; acoustics ; environment ; environmental monitoring ; noise ; sound ; Acoustics ; Environment ; Environmental Monitoring ; Noise ; Sound
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: Marine Vibroseis (MV) may provide a marine seismic sound source that has less environmental impact than conventional airguns. Modelled sound levels from a realistic MV array and airgun array with similar downward energy at frequencies < 100 Hz were compared under three scenarios: shallow, deep, and slope. Changing the layout of the MV array's higher frequency sources reduced sound exposure levels (SELs) by 4 dB. At 100 m range this MV was 20 dB lower in peak-to-peak sound pressure level vs. the airgun array, decreasing to 12 dB lower at 5 km, the maximum modelled range for peak levels. SELs were less clear-cut, but for both shallow and deep water, MV produced 8 dB lower SELs than the airguns at 100 km range because of MV's reduced bandwidth. Overall, MV produced lower broadband SELs, especially at long range, and lower peak pressure, especially at short range, than airguns. © 2017 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87603
Appears in Collections:过去全球变化的重建
全球变化的国际研究计划

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作者单位: Centre for Marine Science and Technology, Curtin University, Bentley, Western Australia, Australia; Department of Biology, Dalhousie University, 1355 Oxford St., P.O. Box 15000, Halifax, Nova Scotia, Canada; International Fund for Animal Welfare (IFAW), 87-90 Albert Embankment, London, United Kingdom; Natural Resources Defense Council, 1314 2nd St., Santa Monica, CA, United States; International Fund for Animal Welfare, 6 Belmore Street, Surry Hills, NSW, Australia

Recommended Citation:
Duncan A.J.,Weilgart L.S.,Leaper R.,et al. A modelling comparison between received sound levels produced by a marine Vibroseis array and those from an airgun array for some typical seismic survey scenarios[J]. Marine Pollution Bulletin,2017-01-01,119(1)
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