地震海洋学研究进展  

Recent Progress in Seismic Oceanography

作　　者：胡毅[1,2] 刘怀山[1] 陈坚[2] 许江[2] 

机构地区：[1]中国海洋大学海洋地球科学学院,山东青岛266100 [2]国家海洋局第三海洋研究所,福建厦门361005

出　　处：《地球科学进展》2009年第10期1094-1104,共11页Advances in Earth Science

基　　金：国家海洋局第三海洋研究所基本科研业务费专项资金项目"我国近海海洋水体特性的地震探测方法研究"(编号:海三科2009004);福建省908专项"福建省海砂资源综合评价"(编号:FJ908-02-02-06);国家908专项"海洋底质调查成果集成"(编号:908-ZC-I-05)资助

摘　　要：传统船舶调查获取海洋水体温盐资料的方法在水平方向上分辨率较低,而用反射地震探测海洋水体特性的方法——地震海洋学,能有效提高海水温盐资料在水平方向上的分辨率。概述了近5年来地震海洋学的发展过程,重点介绍了地震海洋学方法在海洋锋面观测、水团边界划分、海洋内波分析、中尺度涡旋等方面的研究成果,以及AVO、全波形反演等反射地震处理方法在海洋水体特性研究中的应用。比较了地震海洋学方法与声层析技术、高频声技术等声学方法应用于海洋水体特性研究的异同。并展望了下一步研究工作的重点:①有关地震反射剖面的各种参数与海洋水体温盐结构物理模型的联系及其定量分析;②以研究海洋水体特性为目标的地震反射剖面的处理方法;③海洋地震调查历史数据的应用。Thermohaline fine structures are traditionally measured by ship-loaded instruments. This method has a high vertical resolution, but alimited horizontal resolution. The reflection seismic method, which is to study the physical oceanography, can effectively improve the horizontal resolution of thermohaline, so as to understand hori- zontal variation of thermohaline fine structure, and to provide high resolution basic data for researches in ocean and climatic change, which is called ＂Seismic Oceanography＂. The recent progress in development and applications of seismic oceanography in the past five years are summarized in the paper, mainly including observing oceanographic front , imagining water mass boundaries, analyzing ocean internal wave spectra and mesoscale eddies fine struc- ture, as well as the full waveform inversion of reflection seismic data for ocean and amplitude-versus-offset analysis of acoustic reflections for temperature contrasts in the water column. The difference and relation among seismic oce- anography, marine acoustical tomography and high frequency technology applying in the physical oceanography is discussed respectively. Future associated research may emphasize the relationship and quantitative analysis between seismic parameters and thermohaline physical model, seismic processing method for studying water column, application of the historical data of marine seismic integration and so on.

关 键 词：反射地震 海洋水体 地震海洋学 模型 

分 类 号：P71[天文地球—海洋科学]