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Seafloor Sediment Study from South China Sea: Acoustic & Physical Property Relationship
2015
Remote Sensing
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Seafloor sediments of different geographical areas in the southern South China Sea (continental shelf, continental slope, and Okinawa Trough) were gravity cored at 21 locations. ...
Empirical equations from previous studies were applied to predict V of sediment samples from the measured physical properties and it was found that the sound velocities derived from the existing equations ...
This study is funded by the National Special Research Fund of China for Non-Profit Marine Sector (No.200905025).
Author Contributions Zhengyu Hou analyzed the data and wrote this paper. ...
doi:10.3390/rs70911570
fatcat:myh3g65cn5eoldx3f3uumuhsu4
Inversion of the physical properties of seafloor surface sediments based on AUV sub-bottom profile data in the northern slope of the South China Sea
2021
Scientific Reports
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AbstractBased on the seafloor reflection coefficient obtained from autonomous underwater vehicle (AUV) sub-bottom profile survey data of the northern slope of the South China Sea, combined with the sample ...
The physical property parameters such as the porosity, density, and mean grain size of seafloor surface sediments are further inverted. ...
Acknowledgements The study was funded by the NSFC-Shandong Joint Fund for Marine Science Research Centers (U1606401), the National Program on Global Change and Air-Sea Interaction (No.GASI-GEO-GE-05), ...
doi:10.1038/s41598-021-86161-x
pmid:33753846
fatcat:f2quddaxkzgkhh6np2xfqwswbe
Estimation of Gas Hydrate Saturation Using Constrained Sparse Spike Inversion: Case Study from the Northern South China Sea
2006
Terrestrial, Atmospheric and Oceanic Sciences
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Bottom-simulating reflectors (BSRs) were observed beneath the seafloor in the northern continental margin of the South China Sea (SCS). ...
Acoustic impedance profile was derived by Constrained Sparse Spike Inversion (CSSI) method to provide information on rock properties and to estimate gas hydrate or free gas saturations in the sediments ...
Bottom-simulating reflectors (BSRs) were observed beneath the seafloor in the northern continental margin of the South China Sea (SCS). ...
doi:10.3319/tao.2006.17.4.799(gh)
fatcat:jg7umuf7yzgd3b2xi3mkhtytp4
Geophysical Indicators of Gas Hydrate in the Northern Continental Margin, South China Sea
2011
Journal of Geological Research
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Gas hydrate drilling results show that gas hydrate has a close relationship with strong bottom-simulating reflectors (BSRs) identified from seismic data in the Baiyun sag, South China Sea. ...
Higher acoustic impedance and P-wave velocity were identified above the BSR. ...
In China, eight sites were drilled in 2007 in Shenhu area, Pearl River Mouth basin (PRMB), the northern slope of South China Sea [18] . ...
doi:10.1155/2011/359597
fatcat:xoiay5torvbzlouhyb7cafn3bm
Preface to the Special Issue on Gas Hydrate Research around the South China Sea and Taiwan
2006
Terrestrial, Atmospheric and Oceanic Sciences
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Lin et al. (2006) show a very fast sulfate reduction rate in pore waters from cored sediments in the northern part of continental margin of the South China Sea. ...
In the last group of two papers, Jiang et al. (2006) present detailed mineralogy and physical properties of cored sediments from the gas hydrate potential area of offshore SW Taiwan. ...
doi:10.3319/tao.2006.17.3.i(gh)
fatcat:ibfhsvgqujfkxdzpvlkqhgfjnq
Modeling and Prediction of Effects of Seafloor Sediment on Sound Velocity Based on Multi-parameter Analysis
2019
IOP Conference Series: Materials Science and Engineering
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slope in the Southern South China Sea. ...
The principal component regression model is established based on the data of seafloor sediment of the continental slope in the Southern South China Sea. ...
by Lu Bo et al. from the continental shelf in the south of the South China Sea [17] . ...
doi:10.1088/1757-899x/490/6/062066
fatcat:emyuczfi5nfghmlmjggeawjurm
Research on Acoustic Properties of Seafloor Sediment with Temperature and Pressure Controlled
2014
Marine georesources & geotechnology
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The submarine in-situ environmental state was simulated to study the acoustic properties of seafloor sediments of the South China Sea in different temperature and pressure environments in this article ...
with the application of the small-scale acoustic measurement system of seafloor sediments. ...
, State Oceanic Administration, in Hangzhou, China, is applied to study the acoustic properties of sediments obtained from the northern South China Sea. ...
doi:10.1080/1064119x.2012.661032
fatcat:tt3n6pnhmvdhrgeambov6tkvxe
Grain and Pore Factors in Acoustic Response to Seafloor Sediments
2010
Marine georesources & geotechnology
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In additon, he made an analysis of the relationship between the microstructure of calcium soil sediment and acoustic-physical properties in the central and southern South China Sea, proposing three microstructure ...
The data here come from the southern South China Sea. ...
doi:10.1080/10641191003780724
fatcat:oab7gfemgbfczhgatwv2b3vk4a
Gas Hydrate Accumulation and Occurrence Associated with Cold Seep Systems in the Northern South China Sea: An Overview
2021
Geofluids
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China Sea. ...
Various cold seep systems and related gas hydrate accumulations have been discovered in the northern South China Sea in the past three decades. ...
They are accompanied by a type of local abnormal sea water with various shapes, such as plumes, columns, and whips, which differ from the physical properties of the surrounding sea water [1] [2] [3] [ ...
doi:10.1155/2021/5571150
fatcat:t5nnyyh2xjb5nng5qr7nrxptia
Elevated gas hydrate saturation within silt and silty clay sediments in the Shenhu area, South China Sea
2011
Journal of Geophysical Research
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1] Gas hydrate saturations were estimated using five different methods in silt and silty clay foraminiferous sediments from drill hole SH2 in the South China Sea. ...
Gas hydrate saturations derived from observed pore water chloride values in core samples range from 10 to 45% of the pore space at 190-221 m below seafloor (mbsf). ...
Introduction [2] In June 2007, eight sites on the continental margin along the north slope of the South China Sea (SCS) were drilled to study gas hydrate, following about ten years of seismic exploration ...
doi:10.1029/2010jb007944
fatcat:drkq6s6ovfeqvddhus3ab534xe
GEOPHYSICAL PROPERTIES OF THE NORTHERN SOUTH CHINA SEA, THE CONTINENTAL MARGIN
南シナ海北部大陸縁辺域における地球物理学的特徴
2000
GEOINFORMATICS
南シナ海北部大陸縁辺域における地球物理学的特徴
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There are a lot of marginal basins around Circum-Pacific Zone from the north to the south. One of large marginal basins is the South China Sea(SCS). ...
Compilation of marine gravity and magnetic data of the South China Sea clarified structural characteristics of its rifted continental and convergent margins, both past and present. ...
ACKNOWLEDGEMENTS During the period of JCCP from 1992 to 1995, the author is much indebted to Profs. ...
doi:10.6010/geoinformatics1990.11.4_223
fatcat:bhw4rzo3qvblvjcbxo6xpkol4e
The North Pacific Acoustic Laboratory deep-water acoustic propagation experiments in the Philippine Sea
2013
Journal of the Acoustical Society of America
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the seafloor. ...
ocean modeling, can yield estimates of the time-evolving ocean state useful for making improved acoustic predictions, (c) improving our understanding of the physics of scattering by internal waves and ...
Revelle and individuals at the Applied Physics Laboratory of the University of Washington ...
doi:10.1121/1.4818887
pmid:24116529
fatcat:b6hlq6fk45dnle5sfu3znnjbs4
Seismic stratigraphy of the central South China Sea basin and implications for neotectonics
2015
Journal of Geophysical Research - Solid Earth
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boundaries and facies of the central basin and neighboring regions of the South China Sea. ...
Coring/logging data and physical property measurements from International Ocean Discovery Program Expedition 349 are integrated with, and correlated to, reflection seismic data to map seismic sequence ...
Program of Higher Education of China (grant 20100072110036). ...
doi:10.1002/2014jb011686
fatcat:umzo7amsvrfjjknfbjcjdegrz4
Continent-ocean interactions within the East Asian Marginal seas
2003
EOS
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uplift, climate change and the erosional response, (4) the carbonate reefs of the South China Sea, as recorders of high resolution climate and sea-level change, and (5) the Sunda Shelf to establish the ...
longterm history of climate and sea-level changes and its relationship to atmospheric processes where the greatest ocean-atmosphere transfer of heat and moisture occurs. ...
South China Sea Since the 1990es, the South China Sea has become one of the global foci in paleoceanographic studies. ...
doi:10.1029/2003eo150005
fatcat:2jp7fjypgjaobdmiygki33s3hu
Black-Box Modelling and Prediction of Deep-Sea Landing Vehicles Based on Optimised Support Vector Regression
2022
Journal of Marine Science and Engineering
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Due to the nonlinearity of the deep-seafloor and complexity of the hydrodynamic force of novel structure platforms, realising an accurate motion mechanism modelling of a deep-sea landing vehicle (DSLV) ...
In this study, first, the prototype and system composition of the DSLV were proposed, and subsequently, the high-dimensional nonlinear mapping relationship between the motion state and the driving forces ...
Combined with the current observation in the South China Sea and the hydrodynamic simulation results in Figure 8b , the current interference of the DSLV while crawling on the seafloor was set to 25 N. ...
doi:10.3390/jmse10050575
fatcat:wjpbiyv5ofan7ptqe4g4ygnxr4
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