Submarine Trenches and Wave-Wave Interactions Enhance the Sediment Resuspension Induced by Internal Solitary Waves

作     者：TIAN Zhuangcai LIU Chao JIA Yonggang SONG Lei ZHANG Mingwei TIAN Zhuangcai;LIU Chao;JIA Yonggang;SONG Lei;ZHANG Mingwei

作者机构：State Key Laboratory for Geomechanics and Deep Underground EngineeringChina University of Mining and TechnologyXuzhou 221116China Shandong Provincial Key Laboratory of Marine Environment and Geological EngineeringOcean University of ChinaQingdao 266100China Laboratory for Marine GeologyQingdao National Laboratory for Marine Science and TechnologyQingdao 266061China Key Laboratory of Coastal Science and Integrated ManagementMinistry of Natural ResourcesQingdao266061China 

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4期

页      面：983-992页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.42107158 and 41831280) the Natural Science Foundation of Jiangsu Province(No.BK20210527) the Open Research Fund of Key Laboratory of Coastal Science and Integrated Management,the Ministry of Natural Resources,the National Basic Research Program of China(No.2018YFC0309200) the Fundamental Research Funds for the Central Universities(No.2021QN1096) We thank the Natural Science Foundation of China for the Open Research Cruise(No.NORC2018-05) 

主　　题：sediment resuspension internal solitary waves trench wave-wave interaction 

摘      要：Internal solitary waves(ISWs)are nonlinear fluctuations in nature that could cause significant interactions between seawater and the *** have been proven to be an adequate cause of sediment resuspension in shallow and deep-sea *** the South China Sea,ISWs have the largest amplitude globally and directly interact with the seabed near the Dongsha slope in the northern South China *** analyzed the water profile and high-resolution multibeam bathymetric data near the Dongsha slope and revealed that submarine trenches have a significant impact on the sediment resuspension by ***,ISWs in the zone of the wave-wave interaction enhanced sediment mixing and *** concentration of the suspended particulate matter inside submarine trenches was significantly higher than that outside *** concentration of the suspended particulate matter near the bottoms of trenches could be double that outside them and formed a vast bottom nepheloid *** could increase the concentration of the suspended particulate matter in the entire water column,and a water column with a high concentration of the suspended particulate matter was formed above the *** in the wave-wave interaction zone near Dongsha could induce twice the concentration of the bottom nepheloid layer than those in other *** sediment resuspension caused by ISWs is a widespread occurrence all around the *** findings of this study can offer new insights into the influence of submarine trench and wave-wave interaction on sediment resuspension and help in geohazard assessment.