原位测量技术在黄海沉积声学调查中的应用

阚光明; 刘保华; 韩国忠; 李官保; 赵月霞

原位测量技术在黄海沉积声学调查中的应用

国家海洋局第一海洋研究所,山东青岛 266061;国家海洋局第一海洋研究所海洋沉积与环境地质国家海洋局重点实验室,山东青岛 266061

基金项目: 国家"八六三"计划项目(2008AA09Z305;2008AA09Z301);海洋公益性行业科研专项经费项目(200805008);国家海洋局第一海洋研究所基本科研业务费专项基金项目(2007G14)。

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出版历程
- 收稿日期: 2010-01-15
- 修回日期: 2010-03-21

Application of in-situ measurement technology to the survey of seafloor sediment acoustic properties in the Huanghai Sea

First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Key Laboratory of State Oceanic Administration for Marine Sedimentology and Environmental Geology, First Institute of Oceanography,State Oceanic Administration,Qingdao 26

摘要

摘要: 介绍了最新研制的基于液压驱动贯入的自容式海底沉积声学原位测量系统及其在南黄海中部海底沉积声学调查中的应用。该系统可以实现对海底沉积物声速和声衰减系数进行原位测量,通过液压驱动装置将四根声学探杆匀速贯入到海底沉积物中,减少了对沉积物的扰动,可按照预设的工作参数在海底全自动工作,无需甲板上人员实时控制,采集的声波信号自容式存储于存储单元。系统工作水深为500 m,测量深度为1 m,测量频率为30 kHz,采样频率为10 MHz。使用该系统在南黄海中部获得了40个站位不同类型沉积物的声学特性原位测量数据,并使用
- 原位测量系统 /
- 声速 /
- 声衰减系数 /
- 海底沉积物
Abstract: A novel self-contained in situ sediment acoustic measurement system based on hydraulic driving penetration and its application in the middle area of the southern Huanghai Sea are introduced in detail. The system was designed for the in situ measurement of sound speeds and attenuation coefficients of seafloor sediments. By using a hydraulic driving device, the system drives four acoustic probes into sediments at an even speed, and this decreases disturbances to sediments introduced by the penetration of acoustic probes. It can work full-automatically on the seafloor without real-time control, and data are stored self-containedly into its storage unit. Its operating water depth and the measuring depth are 500 and 1.0 m respectively. The measuring frequency is 30 kHz, and the sampling rate of A/D converter is 10 MHz. A set of in situ sound speeds and attenuation coefficients of seafloor sediments were obtained at 40 stations in the middle area of the southern Huanghai Sea. The seawater sound speed measured by the in situ system was calibrated according to the seawater sound speed measured by a CTD profiler.The relative error is less than 0.5%. The result indicates that the data measured by the in situ sediment acoustic system are accurate and credible.
- in situ measurement system /
- sound speed /
- sound attenuation coefficient /
- seafloor sediments

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温明明, 肖波, 崔华义.海底沉积层声学特性测量方法研究[J].海洋技术, 2006, 25(1):124—126.

王琪, 刘雁春, 暴景阳, 等. 海底沉积物声速测量方法及其比较[J]. 海洋技术, 2006, 25(3):100—102.

梁元博,卢博.海洋沉积物声学物理和土力学[J].地球科学进展,1991,6(6):42—43.

卢博.南沙群岛海域浅层沉积物物理性质的初步研究[J].中国科学:D辑,1997,27(1):77—81.

周建平,陶春辉, 顾春华, 等.印度海啸区附近海域沉积物声速测量及声学特性分析[J].海洋学报, 2008,30(3):56—61.

邹大鹏, 吴百海, 卢博, 等. 海底沉积物声速实验室测量结果校正研究[J].热带海洋学报, 2008, 7(1): 27—31.

梁润华, 吴百海, 邹大鹏, 等. 海底沉积物声衰减同轴差距衰减测量法与其他测量方法的对比研究[J]. 热带海洋学报, 2009, 28(3): 40—44.

吴锦虹, 邹大鹏, 吴百海, 等. 海底沉积物样品声衰减与温度关系的实验研究[J]. 声学技术, 2008, 27(5): 631—635.

FU S S, WILKENS R H, FRAZER L N, et al. Acoustic lance:new in situ seafloor velocity profiles[J]. J Acoust Soc Am,1996, 99(1): 234—242.

GORGAS T J, KIM G Y, PARK S C, et al. Evidence for gassy sediments on the inner shelf of SE Korea from geoacoustic properties[J]. Continental Shelf Research, 2003, 23:821—834.

FU S S, WILKENS R H, FRAZER L N. In situ velocity profiles in gassy sediments: Kiel Bay[J]. Geo-Marine Letters, 1996, 16(3):249—253.

BEST A I, ROBERTS J A, SOMERS M L. A new instrument for making in-situ acoustic and geotechnical measurements in seafloor sediments[J]. Underwater Technology, 1998, 23(3): 123—131.

BUCKINGHAM M J, RICHARDSON M D. On tone-burst measurements of sound speed and attenuation in sandy marine sediments[J].IEEE J Oceanic Eng, 2002, 27(3): 429—453.

RICHARDSON M D, BRIGGS K B. In situ and laboratory geoacoustic measurements in soft mud and hard-packed sand sediments: implications for high-frequency acoustic propagation and scattering[J]. Geo-Marine Letters, 1996, 16: 196—203.

THORSOS E I, WILLIAM K L, CHOTIROS N P, et al. An overview of SAX99: acoustic measurements[J]. IEEE J Oceanic Eng, 2001, 26(1):4—24.

陶春辉, 金肖兵, 金翔龙, 等. 多频海底声学原位测试系统研制和试用[J]. 海洋学报, 2006, 28(2): 46—50.

郭常升, 窦玉坛, 谷明峰. 海底底质声学性质原位测量技术研究[J]. 海洋科学, 2007, 31(8): 6—10.

谷明峰, 郭常升, 李会银. 海底松散沉积物声学性质原位测量实验研究[J]. 海洋科学, 2008, 32(5):1—5.

蓝先洪, 张训华, 张志珣. 南黄海沉积物的物质来源及运移研究[J]. 海洋湖沼通报, 2005, 1(4): 53—60.

张宪军, 蓝先洪, 赵广涛. 南黄海中西部表层沉积物粒度特征分析[J]. 海洋地质动态, 2007, 23(7): 8—13.

卢博, 梁元博. 中国东南沿海海洋沉积物物理参数与声速的统计相关[J].中国科学:B辑,1994, 24(5): 556—560.

卢博, 李赶先, 黄韶健, 等. 中国黄海、东海和南海北部海底浅层沉积物声学物理性质之比较[J].海洋技术, 2005, 24(2): 28—33.

ROBB Gary B.The in situ compressional wave properties of marine sediments .Southampton:Institute of Sound and Vibration Research, University of Southampton, 2004.

LEWIS L F. An investigation of ocean sediments using the deep ocean sediment probe .Kingston:Department of Ocean Engineering,University of Rhode Island, 1971.

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