来自船只的水下辐射噪声的建模,该噪声是在洛福特-维斯特拉伦有线观测站测量的
Michael G Brown1, Gabrielle A Murray1, Guosong Zhang2
1Rosenstiel School of Marine, Atmospheric and Earth Sciences, University of Miami, Miami Florida 33149, USA.
The Journal of the Acoustical Society of America
|January 29, 2026
概括
从船只发出的船舶噪声在船尾表现出比前面更高的强度. 这种亚齐木特异性被准确地建模,表明诸如船舶位移等因素会影响水下声音.
科学领域:
- 海洋学 海洋学 海洋学
- 声学 声学 在声学方面
- 海洋生物学 海洋生物学
背景情况:
- 来自船舶的水下辐射噪声是影响海洋生态系统的重要人为因素.
- 了解船舶噪声传播对于评估其对海洋生物的影响至关重要.
研究的目的:
- 将测量的船舶噪声与模型预测进行比较.
- 为了研究辐射船舶噪声的亚齐穆特异性.
- 为了估计辐射的声力和异性强度.
主要方法:
- 利用了来自Lofoten-Vesterålen有线天文台的宽带船舶噪声数据.
- 使用自动识别系统 (AIS) 追踪了26艘船只.
- 采用了一种船只噪声传播模型,采用了亚齐木索特异性.
主要成果:
- 测量结果显示,与前方相比,船尾的声音强度更高 (亚齐木特异性).
- 模型预测显示与测量的良好一致.
- 不同性强度因船舶类型而异,并且在同一船舶的轨道之间显示出相当大的变化.
- 辐射的声力并没有随着船的速度而持续增加.
结论:
- 开发的模型准确地捕捉了船舶噪声中的亚齐木斯特异性.
- 除了速度之外的因素,例如船舶的排位,可能会影响辐射的声力.
- 需要进一步的研究,才能充分了解辐射船舶噪声的驱动因素.
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