Lin Ying-Tsong, Newhall Arthur E, Miller James H, Potty Gopu R, Vigness-Raposa Kathleen J
Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543,
University of Rhode Island, Narragansett, Rhode Island 02881,
J Acoust Soc Am. 2019 May;145(5):EL335. doi: 10.1121/1.5099560.
A three-dimensional underwater sound propagation model with realistic ocean environmental conditions has been created for assessing the impacts of noise from offshore wind farm construction and operation. This model utilizes an existing accurate numerical solution scheme to solve the three-dimensional Helmholtz wave equation, and it is compared and validated with acoustic transmission data between 750 and 1250 Hz collected during the development of the Block Island Wind Farm (BIWF), Rhode Island. The variability of underwater sound propagation conditions has been investigated in the BIWF area on a temporal scale of months and a spatial scale of kilometers. This study suggests that future offshore wind farm developments can exploit the seasonal variability of underwater sound propagation for mitigating noise impact by scheduling wind farm construction during periods of high acoustic transmission loss. Discussions on other applications of soundscape prediction, planning, and management are provided.
已创建一个具有实际海洋环境条件的三维水下声传播模型，用于评估海上风电场建设和运营产生的噪声影响。该模型利用现有的精确数值求解方案来求解三维亥姆霍兹波动方程，并与罗德岛布洛克岛风电场（BIWF）开发期间收集的750至1250赫兹的声学传输数据进行比较和验证。在BIWF区域，已在数月的时间尺度和数公里的空间尺度上研究了水下声传播条件的变异性。这项研究表明，未来的海上风电场开发可以利用水下声传播的季节性变异性，通过在高声学传输损失期间安排风电场建设来减轻噪声影响。还提供了关于声景预测、规划和管理的其他应用的讨论。
