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新冠疫情对深海噪声水平的影响。

Impact of the COVID-19 pandemic on levels of deep-ocean acoustic noise.

机构信息

National Physical Laboratory, Hampton Road, Teddington, TW11 0LW, UK.

Hydro-Acoustics, Engineering and Development Section, IMS, CTBTO, Vienna, Austria.

出版信息

Sci Rep. 2023 Mar 21;13(1):4631. doi: 10.1038/s41598-023-31376-3.

DOI:10.1038/s41598-023-31376-3
PMID:36944646
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10028758/
Abstract

The extraordinary circumstances of the COVID-19 pandemic led to measures to mitigate the spread of the disease, with lockdowns and mobility restrictions at national and international levels. These measures led to sudden and sometimes dramatic reductions in human activity, including significant reductions in ship traffic in the maritime sector. We report on a reduction of deep-ocean acoustic noise in three ocean basins in 2020, based on data acquired by hydroacoustic stations in the International Monitoring System of the Comprehensive Nuclear-Test-Ban Treaty. The noise levels measured in 2020 are compared with predicted levels obtained from modelling data from previous years using Gaussian Process regression. Comparison of the predictions with measured data for 2020 shows reductions of between 1 and 3 dB in the frequency range from 10 to 100 Hz for all but one of the stations.

摘要

由于 COVID-19 大流行的特殊情况，采取了措施来减轻疾病的传播，包括国家和国际层面的封锁和流动性限制。这些措施导致人类活动突然且有时急剧减少，包括海上交通的显著减少。我们根据《全面禁止核试验条约》国际监测系统的水听器站获取的数据报告了 2020 年三大洋深海噪声的减少情况。将 2020 年测量的噪声水平与使用高斯过程回归从以前年份的建模数据获得的预测水平进行了比较。将预测值与 2020 年的实测数据进行比较，除一个站点外，所有站点在 10 至 100 Hz 的频率范围内的噪声减少了 1 至 3 dB。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3fad/10030466/b4bd9899699a/41598_2023_31376_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3fad/10030466/575e1802053e/41598_2023_31376_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3fad/10030466/36d8bd98ed97/41598_2023_31376_Fig9_HTML.jpg
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