@article{oai:mie-u.repo.nii.ac.jp:00005602,
 author = {小池, 隆 and Koike, Takashi and 小長谷, 庸夫 and Konagaya, Tuneo},
 journal = {三重大学水産学部研究報告 = Bulletin of the Faculty of Fisheries, Mie University},
 month = {Oct},
 note = {application/pdf, The underwater ambient noise in the coastal waters of Kumano-nada were observed. The apparatuses used were a hydrophone, tape recorder and newly produced automatic recording system. The ambient noise in the coastal fishing grounds was recorded with the hydrophone and tape recorder. The diurnal change of the sound pressure levels in the bay were caught with an automatic recording buoy. Also, the sounds in the water on stormy days were observed with an submerged automatic recording capsule. 
 The results obtained are summarized as follows: 
1. The maximum noise level of the area was 95 dB(re 1μPa) at frequencies between 200 and 1000 Hz. The minimum level was 45 dB at frequencies above 10KHz. 
2.The prevailing underwater noise levels on stormy days were apparent at frequencies between 500 and 2500 Hz. 
3.Ship traffic noise and other artificial noise were always heard in this area. The noise contributed at frequencies below 1 KHz,and the levels were 40dB above the usual background noise.},
 pages = {123--133},
 title = {熊野灘沿岸における海中騒音},
 volume = {11},
 year = {1984}
}