Abstract

The results of spatial measurements of acoustic noise generated by ice-navigation diesel–electric vessels, which are used in Sakhalin Energy Investment Company Ltd. to work with the PA-B and Molikpaq oil and gas platforms installed on the Northeastern shelf of the island of Sakhalin, are presented. Using a 3D modal parabolic equation and full-scale reference measurements, calculations of anthropogenic acoustic fields that are generated by these vessels in the coastal Piltun area of summer–autumn gray-whale feeding were performed in the approximation of normal vertical modes and a narrow-angle parabolic equation in the horizontal plane. Spectral functions of the point sources of anthropogenic acoustic noise that are equivalent to vessels are constructed for the simulation. The results of the numerical simulation that was performed using these functions are consistent with full-scale measurements.

中文翻译：

---

装有电动机的船只在浅水架上产生的声噪声

摘要

萨哈林能源投资有限公司使用冰航行柴油-电力船产生的声噪声的空间测量结果，该测量与安装在该岛东北部陆架上的PA-B和Molikpaq油气平台一起使用介绍萨哈林岛。使用3D模态抛物线方程式和满量程参考测量，以正常垂直模式和窄波幅近似计算了这些船只在夏季Piltun沿海地区产生的人为声场-秋季灰鲸鱼。水平面中的角度抛物线方程。为模拟构造了人为声噪声的点源的等效于容器的谱函数。