海底沉积物声学性质原位测量系统海上试验研究  

Test of an in situ measurement system of marine sediments

作　　者：李艳华[1,2,3] 郭常升[1,2] 李会银[4] 谭宝海[4] 

机构地区：[1]中国科学院海洋研究所,山东青岛266071 [2]中国科学院海洋地质与环境重点实验室,山东青岛266071 [3]中国科学院研究生院,北京100049 [4]中国石油大学地球资源学院,山东东营257061

出　　处：《海洋科学》2010年第9期55-59,63,共6页Marine Sciences

基　　金：国家863计划项目(2006AA09Z116)

摘　　要：提出了一种新的海底沉积物声学性质原位测量方法,介绍了新研制的海底沉积物声学性质原位测量系统。在青岛近海海域对该系统进行了海试,获得了各个站位的声速数据。将测得的各站位的声速与不同海域的沉积物声速进行对比分析,并对各个站位的声速与沉积物的平均粒径进行了相关性分析,发现与以往研究结果一致,沉积物声速与沉积物类型相关,不同类型的沉积物的声速有明显差异;声速与平均粒径相关性较好,粒径越大,声速越高。结果表明,利用海底沉积物声学性质原位测量系统测得的原位声速是正确的,它能快速准确地得到海底沉积物的声速值。In this paper,we put forward a new method of measuring the in situ velocity of marine sediments and introduced the in situ measurement system of marine sediments.The system was tested in Qingdao offshore area.We compared the velocity of different sea sediments and analyzed the correlation between mean grain size and velocity by regression analysis.The results indicated that the different sediments had different velocities and the sediments with coarser grains had higher velocity.The results were accurate by contrast with previous research.The research in this paper verifies that the measurement system can measure the velocity quickly and accurately.

关 键 词：海底沉积物 原位测量 声速 

分 类 号：TB565.1[交通运输工程—水声工程]