The characteristic analysis of ambient sea noise spectrum based on submersible buoy

Da Lianglong; Wang Chao; Lu Xiaoting; Han Mei; Deng Xiaohua

doi:10.3969/j.issn.0253-4193.2014.05.006

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Da Lianglong, Wang Chao, Lu Xiaoting, Han Mei, Deng Xiaohua. The characteristic analysis of ambient sea noise spectrum based on submersible buoy[J]. Haiyang Xuebao, 2014, 36(5): 54-60. doi: 10.3969/j.issn.0253-4193.2014.05.006

Citation:

Da Lianglong, Wang Chao, Lu Xiaoting, Han Mei, Deng Xiaohua. The characteristic analysis of ambient sea noise spectrum based on submersible buoy[J]. Haiyang Xuebao, 2014, 36(5): 54-60. doi: 10.3969/j.issn.0253-4193.2014.05.006

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The characteristic analysis of ambient sea noise spectrum based on submersible buoy

doi: 10.3969/j.issn.0253-4193.2014.05.006

1.
Navy Submarine Academy, Naval Underwater Battlefield Environment Institution, Qingdao 266071, China
2.
The Meteorological and Hydrological Bureau, Beijing 100081, China
3.
The National Marine Environment Forecast Center, Beijing 100081, China

Received Date: 2014-01-21
Rev Recd Date: 2014-02-17

Abstract

Abstract

Ambient sea-noise data were collected for three month period,using submersible buoy system in the South China Sea. Broad-band ambient-noise signals from the sixteen hydrophones were amplified and recorded for 2min every 1h. The results of data processing show a strong wind dependence in the upper frequency bands from approximately 800 Hz to 5 kHz,and the greater the wind speed,the better the correlation. The noise is correlated more with wind speed than with wave height. The wind-generated spectrum level producing virtually constant noise intensity in the midwater,however,due to the length of the hydrophone failed to cover the entire depth,the distribution of the noise at the near-surface and near-bottom unable to given. In the frequencies above 400 Hz ambient-noise spectrum level ranged with the entire wind speeds. In addition it was found that the ambient-noise spectrum shown to be linearly dependent upon the logarithm of wind speed.
- ambient noise,
- submersible buoy system,
- correlation,
- wind-generated noise

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References(9)

References

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