A model of sound-speed profiles in ocean for computer simulation
A new mathematical method for sound speed profile calculation in the ocean is proposed in this paper. Because we are taking account of the characteristics of the sound speed profiles in the middle latitude ocean, this method computes various sound speed distribution curves much easier than by the co...
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| Published in | The Journal of the Marine Acoustics Society of Japan Vol. 24; no. 2; pp. 78 - 84 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | Japanese |
| Published |
The Marine Acoustics Society of Japan
01.04.1997
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0916-5835 1881-6819 |
| DOI | 10.3135/jmasj.24.78 |
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| Abstract | A new mathematical method for sound speed profile calculation in the ocean is proposed in this paper. Because we are taking account of the characteristics of the sound speed profiles in the middle latitude ocean, this method computes various sound speed distribution curves much easier than by the conventional method. In order to confirm the validity of this method, typical profiles are calculated using the actual measured average temperature data. The difference of propagation sound characteristics is also estimated between under normal condition and under eddy current by the sound ray theory. |
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| AbstractList | A new mathematical method for sound speed profile calculation in the ocean is proposed in this paper. Because we are taking account of the characteristics of the sound speed profiles in the middle latitude ocean, this method computes various sound speed distribution curves much easier than by the conventional method. In order to confirm the validity of this method, typical profiles are calculated using the actual measured average temperature data. The difference of propagation sound characteristics is also estimated between under normal condition and under eddy current by the sound ray theory. |
| Author | ENDOH, Nobuyuki MORITA, Kouji YIN, Yixin |
| Author_xml | – sequence: 1 fullname: ENDOH, Nobuyuki organization: Faculty of Engineering, Kanagawa University – sequence: 1 fullname: MORITA, Kouji organization: Faculty of Engineering, Kanagawa University – sequence: 1 fullname: YIN, Yixin organization: Faculty of Engineering, Kanagawa University |
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| DOI | 10.3135/jmasj.24.78 |
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| PublicationTitle | The Journal of the Marine Acoustics Society of Japan |
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| References | 4) R.J.Urick, 土屋明訳, “水中音響の原理”, 共立出版 (1978). 1) W. H. Munk and C. A. Wunsch, “Ocean acoustic tomography : A scheme for large scale monitoring”, Deep-Sea Res., 26A, 123-161 (1979). 7) 土屋利雄, 菊池年晃, 中西俊之, 網谷泰孝, 越智 寛, “SOFARチャンネル中の音源深度と固有音線との関係”, 日本音響学会誌, 51巻1号, 14-24 (1995). 8) 越智寛, 土屋利雄, 網谷泰孝, 菊池年晃, 今吉真一, “MATLABによる長距離音波伝搬の数値解析手法について”, 海洋音響学会講演論文集, 61-66(1995). 6) 森田幸二, 土屋健伸, 遠藤信行, “深度方向に流速が変化する潮流を横切る音波伝搬”, 第16回超音波エレクトロニクスの基礎と応用に関するシンポジウム講演予稿集, 109-110 (1995). 2) 奥島基良, 大槻茂雄, “黒潮を横断する音波伝搬の計算”, 日本音響学会講演論文集, 537-538 (1981). 3) W. H. Munk, “Sound channel in an exponentially stratified ocean with application to SOFAR”, Acoust. Soc. Am., Vol.55, No.2,220-226 (1974 5) 海洋音響学会, “トモグラフィー部会報告書” (1986). |
| References_xml | – reference: 1) W. H. Munk and C. A. Wunsch, “Ocean acoustic tomography : A scheme for large scale monitoring”, Deep-Sea Res., 26A, 123-161 (1979). – reference: 4) R.J.Urick, 土屋明訳, “水中音響の原理”, 共立出版 (1978). – reference: 7) 土屋利雄, 菊池年晃, 中西俊之, 網谷泰孝, 越智 寛, “SOFARチャンネル中の音源深度と固有音線との関係”, 日本音響学会誌, 51巻1号, 14-24 (1995). – reference: 5) 海洋音響学会, “トモグラフィー部会報告書” (1986). – reference: 3) W. H. Munk, “Sound channel in an exponentially stratified ocean with application to SOFAR”, Acoust. Soc. Am., Vol.55, No.2,220-226 (1974) – reference: 8) 越智寛, 土屋利雄, 網谷泰孝, 菊池年晃, 今吉真一, “MATLABによる長距離音波伝搬の数値解析手法について”, 海洋音響学会講演論文集, 61-66(1995). – reference: 2) 奥島基良, 大槻茂雄, “黒潮を横断する音波伝搬の計算”, 日本音響学会講演論文集, 537-538 (1981). – reference: 6) 森田幸二, 土屋健伸, 遠藤信行, “深度方向に流速が変化する潮流を横切る音波伝搬”, 第16回超音波エレクトロニクスの基礎と応用に関するシンポジウム講演予稿集, 109-110 (1995). |
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| Snippet | A new mathematical method for sound speed profile calculation in the ocean is proposed in this paper. Because we are taking account of the characteristics of... |
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| SubjectTerms | OAT Ocean acoustic tomography Ray theory SOFAR channel Sound speed profile in ocean |
| Title | A model of sound-speed profiles in ocean for computer simulation |
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