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A preliminary study on the acoustic properties of seafloor sediment in the southern u-boundary of the South China Sea

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Journal of Oceanology and Limnology 2023年第2期41卷 687-693页

作者： Zhengyu HOu Danling TANG Yao XIAO Jingqiang WANG Bo ZHANG Xiaoming CuI Peng HAO School of Ocean Engineering and Technology Sun Yat-sen University&Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519000China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 511458China Key Laboratory of Marine Geology and Metallogeny First Institute of OceanographyMinistry of Natural Resources(MNR)Qingdao 266061China Beijing Information Science&Technology university Beijing 100192China Naval Research Institute Tianjin 300000China Engineering Technology Branch Company of CNOOC Energy Technology&Services Limited CNOOC Experimental CenterTianjin 300000China State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of SciencesBeijing 100190China

The acoustic properties of seafloor sediment are essential parameters in the exploration of marine resources,ocean scientific research and ocean *** sediment samples were collected at the southern u-boundary of the South China Sea(SCS),and the acoustic and physical properties were measured in the *** correlation between physical and sound speed ratio(SSR)was discussed,and SSR-physical property empirical regressions in the Sunda Shelf were established for the first *** with the northern continental shelf of SCS,the Sunda Shelf are mainly silty and sand sediment,and the SSR ranges from 0.9949 to 1.0944,which has higher SSR than the northern continental shelf,implies that the Sunda Shelf is a high SSR *** the same kind of sediment has different physical properties,the single physical parameter of sediment cannot fully represent the acoustic properties of sediment,therefore,the multiple parameter prediction model should develop in the future to improve the prediction precision.

关键词： acoustic properties seafloor sediment South China Sea(SCS) u-boundary

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反映南海u形海疆线的《南洋群岛新地图》

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科学通报 2019年第23期64卷 2390-2394页

作者：骆遥李敬敏张文志刘诗华中国自然资源航空物探遥感中心北京100083

唐丹玲等人[1]发现1951年光华舆地学社编制的《中华人民共和国新地图》(第二版)以连续国界线方式绘制南海诸岛地图,明确了南海的管辖权,并建议以'南海u形海疆线'表征我国南海的海疆线.为了深化对南海u形海疆线的认识,在此特补充文献中... 详细信息

唐丹玲等人[1]发现1951年光华舆地学社编制的《中华人民共和国新地图》(第二版)以连续国界线方式绘制南海诸岛地图,明确了南海的管辖权,并建议以'南海u形海疆线'表征我国南海的海疆线.为了深化对南海u形海疆线的认识,在此特补充文献中极少提及的《南洋群岛新地图》(Map of East Indies)[2]并附讨论.

关键词： South China Sea Islands Map of East Indies u-boundary international boundary

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Geological environment in the South China Sea

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Journal of Oceanology and Limnology 2023年第2期41卷 403-408页

作者： Danling TANG Zhen SuN Guangjun SuI Guangdong Remote Sensing Center for Marine Ecology and Environment Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)Guangzhou 511458ChinaSouth China Sea Institute of OceanographyChinese Academy of SciencesGuangzhou 511458China South China Sea Institute of Oceanography Chinese Academy of SciencesChinaSouthern Marine Science and Engineering Guangdong Laboratory(Guangzhou)Guangzhou 511458China Guangdong university of Foreign Studies Guangzhou 510420China

The South China Sea(SCS),situated in southern China,at the junction of the Pacific Plate,the Eurasian Plate,and the Indian Ocean Plate,is a northeast-southwest trending semi-enclosed *** spans an area of approximately 3.5 million square kilometers and has an average water depth of about 1200 m,its deepest point reaching 5559 *** 2021,a scientific expedition(called as u1 voyage)in the South China Sea was organized by the Innovation Research Team of Guangdong Special Key Program from March to April,this marks the first comprehensive scientific research voyage to the southern uboundary *** of a total of 30 papers,this special issue is to share a portion of the research findings from this scientific expedition u1 voyage,covering six aspects:1)characteristics of the marine ecosystem in the SCS and its response to marine dynamic processes;2)multi-scale marine dynamic processes,sea-air interactions,and forecasting techniques in the SCS;3)geomorphology and geological structure;4)sedimentary processes and resource potential in the SCS;5)geostrategy,rights and interests maintenance and strategic countermeasures in the SCS;6)marine scientific *** integrating the scientific research with the study of history,jurisprudence and international strategies,this issue presents new insights into the formation history and scope evolution of the SCS,and it also seeks to establish a new scientific framework based on the marine governance and development of the SCS.

关键词： South China Sea u-boundary geological science u 1 voyage ecological environment ocean remote sensing

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