Underwater noise of small personal watercraft (jet skis).
Underwater noise of small personal watercraft (jet skis).
复制标题
小型个人船只（摩托艇）的水下噪音。
DOI：
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发表时间：
2013
影响因子：
2.4
通讯作者：
C. Erbe
中科院分区：
文献类型：
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作者：
C. Erbe
在澳大利亚昆士兰州的Bramble Bay，水下记录了个人船只（水上摩托车、水上摩托艇）。水下噪声发射由100 Hz和10 kHz之间的宽带能量组成，这是由于射流产生的振动气泡云，与对应于叶轮叶片速率和谐波的调频音调重叠。宽带干扰源水平分别为149、137和122 dB re 1 μ Pa@1 m（第5、50和95次干扰）。即使这些比小型螺旋桨驱动的船只低，但与生物声学对海洋动物的影响相关的不一定是宽带源水平。
Personal watercraft (water scooters, jet skis) were recorded under water in Bramble Bay, Queensland, Australia. Underwater noise emissions consisted of broadband energy between 100 Hz and 10 kHz due to the vibrating bubble cloud generated by the jet stream, overlain with frequency-modulated tonals corresponding to impeller blade rates and harmonics. Broadband monopole source levels were 149, 137, and 122 dB re 1 μPa @ 1 m (5th, 50th, and 95th percentiles). Even though these are lower than those of small propeller-driven boats, it is not necessarily the broadband source level that correlates with the bioacoustic impact on marine fauna.