| Effect of ocean environmental factors on sound absorption by boric acid relaxation in sea water |
| |
| 作者姓名： | Qiu Xinfang |
| |
| 作者单位： | Shanghai Acoustics Laboratory, Academia Sinica, No.956, Xiaomuqiao Road, Shanghai, 200032, China |
| |
| 基金项目： | This work is supported by National Natural Science Foundation of China |
| |
| 摘 要： | By using the expressions for the maximum absorption per wavelength (αλ),and the relaxation frequency fr of the boric acid relaxation derived previously by the author and employing the related oceanographic literatures, the effects of pressure, temperature, pH and salinity on (αλ)r and ∫r of the boric acid relaxation in sea water have been estimated. Results show that ( αλ), not only increases with pH but also increases approximately linearly with pressure and temperature, and is nearly proportional to the 1. 35 power of salinity. However, pressure, pH and salinity have negligible effect on ∫r; therefore, ∫r, can be approximately expressed as a function of temperature only. Comparisons of the predicted with the measured ( αλ)r and ∫r in different ocean areas are given.
|
| 收稿时间： | 1990/5/17 0:00:00 |
| 修稿时间： | 1990/8/20 0:00:00 |
Effect of ocean environmental factors on sound absorption by boric acid relaxation in sea water |
| |
| Qiu Xinfang.Effect of ocean environmental factors on sound absorption by boric acid relaxation in sea water[J].Acta Oceanologica Sinica,1991,10(2):271-280. |
| |
| Authors: | Qiu Xinfang |
| |
| Institution: | Shanghai Acoustics Laboratory, Academia Sinica, No. 956, Xiaomuqiao Road, Shanghai, 200032, China |
| |
| Abstract: | By using the expressions for the maximum absorption per wavelength (αλ),and the relaxation frequency ∫r of the boric acid relaxation derived previously by the author and employing the related oceanographic literatures,the effects of pressure,temperature,pH and salinity on (αλ)r and ∫r of the boric acid relaxation in sea water have been estimated.Results show that (αλ),not only increases with pH but also increases approximately linearly with pressure and temperature,and is nearly proportional to the 1.35 power of salinity.However,pressure,pH and salinity have negligible effect on ∫r; therefore,∫r,can be approximately expressed as a function of temperature only.Comparisons of the predicted with the measured (αλ)r and ∫r in different ocean areas are given. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
|
