海底浅表层沉积物原位声学测量方法探讨  

Methods of in-situ acoustic measurement of seafloor surface sediment

作　　者：邹大鹏[1] 阚光明[2,3] 龙建军[1] 

机构地区：[1]广东工业大学机电学院,广东广州510006 [2]国家海洋局第一海洋研究所,山东青岛266061 [3]国家海洋局海洋沉积与环境地质重点实验室,山东青岛266061

出　　处：《海洋学报》2014年第11期111-119,共9页

基　　金：国家自然科学基金项目(41106030;11174299);国家973项目资助(6131870102);国家海洋局青年基金项目(2012318);基本科研业务费专项资金项目(GY0213G24)

摘　　要：研究透射式和折射式两类海底沉积声学原位测量方法,通过分析10种海底浅表层沉积物声学原位测量仪器的特征,指出不同声学原位测量技术对沉积物声学特性测量结果的影响。比较黄海海底浅表层沉积声学原位测量数据与实验室测量结果的差异,分析原位声学测量数据普遍小于实验室测量数据的原因,指出原位测量的作用和重要性。探讨指出海底浅表层沉积物原位声学测量所需要配合发展的其他物理性质原位测量技术。In this paper we studied on two methods of seafloor deposition in-situ acoustic detection,i, e. ,the trans- mission measurement and the refraction measurement,analyzed characteristics of 10 kinds of in-situ instruments of seafloor surface sediment acoustic measurement,and discussed the influence of different measurement techniques on the acoustic properties of seafloor sediment. Then,we compared the differences in obtained results between in-situ measurement and laboratorial measurement on the seafloor sediment of the Yellow Sea, analyzed the reason why the in-situ measurement data are generally smaller than laboratorial measurement results. Finally, we suggested that in-situ acoustic measurement is of importance on studying seafloor sediment, and the in-situ measurement tech- niques for other physical properties need to be improved to match the requirements of in-situ acoustic measurement of seafloor sediment.

关 键 词：原位测量 声学 海底沉积物 压缩波 切变波 

分 类 号：P733.23[天文地球—物理海洋学]