Seabed Physical Parameter Research Based on Active-Source OBS Data in the Chukchi Sea Shelf of the Arctic

作     者：ZHEN Sheng XING Junhui JIANG Xiaodian ZHEN Sheng;XING Junhui;JIANG Xiaodian

作者机构：Key Laboratory of Submarine Geosciences and Prospecting TechniquesMOE and College of Marine GeosciencesOcean University of ChinaQingdao 266100China Laboratory for Marine Mineral ResourcesQingdao National Laboratory for Marine Science and TechnologyQingdao 266071China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2023年第22卷第3期

页      面：675-682页

核心收录：

学科分类：082403[工学-水声工程] 08[工学] 0824[工学-船舶与海洋工程] 

基　　金：supported by the National Key R&D Program of China(No.2021YFC2801200) the National Natural Science Foundation of China(No.42076224) the Fundamental Research Funds for the Central Universities(No.201964015) 

主　　题：physical parameters of seafloor sediments ocean bottom seismometer(OBS) Arctic Chukchi Sea 

摘      要：The acquisition of seabed physical parameters is one of the focuses of marine acoustic ***,the activesource ocean bottom seismometer(OBS)detection method in the marine geophysical research is rarely used to acquire seabed physical parameters,and less work is performed in the *** this study,two active-source OBS data collected from the 9th and 11th Chinese National Arctic Research Expedition(CHINARE)are selected to obtain the physical parameters of seabed *** kinds of energy spark are used as the active sources,while the cost function inversion method is used based on the arrival time difference between the reflected and direct *** thickness and sound velocity of the sediment layers are obtained by inversion,and the empirical formula is used to calculate the physical parameters of the seabed sediment,which are compared with the measured *** cost function inversion method based on the time difference of arrival of the reflected and direct waves is tested to be effective and feasible in the inversion of seabed parameters from active-source OBS *** method is further applied to obtain the physical parameters of Chukchi seabed sediments,which provides the idea and reference for the application of marine geophysical activesource OBS detection technology in the inversion of polar seabed physical parameters.