Relationship between container ship underwater noise levels and ship design, operational and oceanographic conditions
Relationship between container ship underwater noise levels and ship design, operational and oceanographic conditions
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DOI：
10.1038/srep01760
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发表时间：
2013-05-02
影响因子：
4.6
通讯作者：
Hildebrand, John A.
中科院分区：
文献类型：
--
作者：
McKenna, Megan F.;Wiggins, Sean M.;Hildebrand, John A.
低频海洋环境噪声主要是来自商船的噪声，但了解个体船舶的贡献值得进一步研究。本研究开发和评估统计模型的集装箱船噪声的设计特点，操作条件和海洋环境。五百船舶通道和十九个协变量被用来建立广义加性模型。使用海底声学记录仪收集了经过加州近海的船舶的声学测量结果。船舶的宽带源电平范围为5-10 dB，这取决于运输条件。对于一艘以不同速度行驶多次的船只，累积噪音在8节时最低，运行速度降低了65%。 具有最高预测能力的模型，按选择顺序，包括船舶速度，大小和一年中的时间。震源深度和传播的不确定性影响模型拟合。这些结果为集装箱船产生更高水平水下噪声的条件提供了见解。
Low-frequency ocean ambient noise is dominated by noise from commercial ships, yet understanding how individual ships contribute deserves further investigation. This study develops and evaluates statistical models of container ship noise in relation to design characteristics, operational conditions, and oceanographic settings. Five-hundred ship passages and nineteen covariates were used to build generalized additive models. Opportunistic acoustic measurements of ships transiting offshore California were collected using seafloor acoustic recorders. A 5–10 dB range in broadband source level was found for ships depending on the transit conditions. For a ship recorded multiple times traveling at different speeds, cumulative noise was lowest at 8 knots, 65% reduction in operational speed. Models with highest predictive power, in order of selection, included ship speed, size, and time of year. Uncertainty in source depth and propagation affected model fit. These results provide insight on the conditions that produce higher levels of underwater noise from container ships.
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影响因子：
2.5
作者：
Hildebrand, John A.
通讯作者：
Hildebrand, John A.
影响因子：
2.4
作者：
McDonald, Mark A.;Hildebrand, John A.;Wiggins, Sean M.
通讯作者：
Wiggins, Sean M.
影响因子：
2.4
作者：
ZHOU, JX;ZHANG, XZ;ROGERS, PH
通讯作者：
ROGERS, PH
影响因子：
2.5
作者：
Clark, Christopher W.;Ellison, William T.;Ponirakis, Dimitri
通讯作者：
Ponirakis, Dimitri
DOI：
10.1098/rspb.2011.2429
发表时间：
2012-06-22
影响因子：
4.7
作者：
Rolland, Rosalind M.;Parks, Susan E.;Kraus, Scott D.
通讯作者：
Kraus, Scott D.