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Modeling the detection range of pulsed calls from resident killer whale in nearshore waters of British Columbia, Canada. [PDF]

open access: yesPLoS ONE
Passive acoustic monitoring (PAM) using underwater listening stations is widely employed to assess the presence and movements of marine mammals. Accurate interpretation of PAM data requires knowledge of vocalization detection ranges, which vary spatially
Xavier Mouy   +3 more
doaj   +2 more sources

Status of ambient noise levels in Jaipur city

open access: yesEnvironment Conservation Journal, 2010
Transportation sector is one of the major contributors to noise in urban areas. Hence, as a first step towards assessment of noise pollution, measurement was taken up with emphasis on traffic noise.
Sheetal Agarwal, B. L. Swami
doaj   +2 more sources

Environmental conditions during hot summer day in Belgrade - interaction of thermal risk and noise pollution [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2023
In urban environments, people's exposure to harmful ambient conditions and noise represents a particular challenge in the modern world. Global climate change and increasing population density, along with the increasing number of vehicles in ...
Bjelić Miloš   +6 more
doaj   +1 more source

Open ocean ambient noise data in the frequency band of 100 Hz–50 kHz from the Pacific Ocean [PDF]

open access: yesJASA Express Letters, 2023
Bubbles from wind generated breaking surface waves are the dominant ambient noise source [Dean and Stokes, Nature 418, 839–844 (2002)]. With ambient noise data collected in the open ocean between 100 Hz and 50 kHz from 1999 to 2022, the ambient noise ...
Jie Yang   +3 more
doaj   +1 more source

Analysis of Regional Ambient Seismic Noise in the Chukchi Sea Area in the Arctic Based on OBS Data from the Ninth Chinese National Arctic Scientific Survey

open access: yesRemote Sensing, 2023
Ambient noise plays a crucial role in influencing the observation quality at seismic stations. By studying the distribution patterns of ambient noise, we can gain initial insights into the noise conditions within a specific research area.
Qianqian Li   +6 more
doaj   +1 more source

四川地区地震背景噪声特征分析

open access: yesDizhen xuebao, 2021
选取四川省数字测震台网2015年1月1日至2018年12月31日期间60个固定台站的三分量连续波形记录,计算了台站噪声加速度功率谱密度及相应的概率密度函数分布,统计了不同频率下的噪声功率谱密度值分布,对不同区域、不同频率下背景噪声水平的变化特征予以分析。结果表明:大部分地震台站的高频段噪声由于受到台站附近人为的、规律的作息生活和生产方式的影响,呈现明显的季节性变化和日变化,即夏季噪声水平升高,冬季降低,在农历春节期间达到全年最低值,地理空间分布特征不明显;第二类地脉动冬季噪声水平升高,夏季降低 ...
Jiangtao Xie   +3 more
doaj   +1 more source

Review of Research Results Concerning the Modelling of Shipping Noise

open access: yesPolish Maritime Research, 2021
The effect of underwater radiated noise (URN) pollution (produced by merchant ships) on marine ecology has become a topic of extreme concern for both the academic community and the general public. This paper summarises some research results and modelling
Yan Xiaowei   +5 more
doaj   +1 more source

Automated monitoring of low level ambient noise levels [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1994
Automated monitoring of low level ambient noise levels presents many challenges. The obvious challenge is to have a noise monitor with a low noise floor, less than 20 dBA, so that the ambient can be monitored. Other challenges include designing a lightweight system that can be backpacked to the monitoring site, and the site selection.
Nelson D. Lewis, William A. Russell
openaire   +1 more source

Impact of a visual indicator on the noise level in an emergency medical dispatch centre - a pilot study

open access: yesBMC Emergency Medicine, 2021
Background Noise levels are monitored in call centres. A maximum of 52 to 55 dB(A) is recommended in order to prevent adverse events. We aimed at assessing the noise level and the impact of a visual noise indicator on the ambient noise level in a French ...
Justin Outrey   +8 more
doaj   +1 more source

Ambient noise levels and detection threshold in Norway [PDF]

open access: yesJournal of Seismology, 2016
Ambient seismic noise is caused by a number of sources in specific frequency bands. The quantification of ambient noise makes it possible to evaluate station and network performance. We evaluate noise levels in Norway from the 2013 data set of the Norwegian National Seismic Network as well as two temporary deployments.
Demuth, Andrea   +2 more
openaire   +4 more sources

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