The occurrence, acoustic characteristics, and significance of submerged reefs on the continental shelf edge and upper slope, northern South China Sea

2015 ◽  
Vol 100 ◽  
pp. 11-24 ◽  
Author(s):  
Xishuang Li ◽  
Xinzhong Li ◽  
Qiang Zhao ◽  
Lejun Liu ◽  
Songwang Zhou
Keyword(s):  
South China Sea ◽  
Continental Shelf ◽  
South China ◽  
Northern South China Sea ◽  
Shelf Edge ◽  
Acoustic Characteristics ◽  
China Sea ◽  
Submerged Reefs ◽  
Upper Slope

scholarly journals Propagation characteristics of near-inertial waves along the continental shelf in the wake of the 2008 Typhoon Hagupit in the northern South China Sea

2018 ◽  
Vol 94 (4) ◽  
pp. 1293-1311 ◽  
Author(s):  
Wenxiang Ding ◽  
Chujin Liang ◽  
Guanghong Liao ◽  
Junde Li ◽  
Feilong Lin ◽  
...  
Keyword(s):  
South China Sea ◽  
Continental Shelf ◽  
South China ◽  
Northern South China Sea ◽  
Propagation Characteristics ◽  
Inertial Waves ◽  
China Sea

Shoaling of the internal solitary waves over the continental shelf of the northern South China Sea

2015 ◽  
Vol 34 (9) ◽  
pp. 35-42 ◽  
Author(s):  
Hongbao Qian ◽  
Xiaodong Huang ◽  
Jiwei Tian ◽  
Wei Zhao
Keyword(s):  
South China Sea ◽  
Continental Shelf ◽  
Solitary Waves ◽  
South China ◽  
Northern South China Sea ◽  
Internal Solitary Waves ◽  
China Sea

Postglacial sea-level changes in the northern South China Sea continental shelf: Evidence for a post-8200 calendar yr BP meltwater pulse

2006 ◽  
Vol 145-146 ◽  
pp. 55-67 ◽  
Author(s):  
W.W.-S. Yim ◽  
G. Huang ◽  
M.R. Fontugne ◽  
R.E. Hale ◽  
M. Paterne ◽  
...  
Keyword(s):  
South China Sea ◽  
Continental Shelf ◽  
Sea Level ◽  
South China ◽  
Northern South China Sea ◽  
Sea Level Changes ◽  
China Sea

Clinoform growth and sediment flux of Late Cenozoic Yinggehai and Qiongdongnan shelf margins, Northern South China Sea

2021 ◽  
Author(s):  
Si Chen ◽  
Hua Wang ◽  
Jianghao Ma ◽  
Tianhao Gong ◽  
Zhenghong Yu
Keyword(s):  
South China Sea ◽  
South China ◽  
Northern South China Sea ◽  
Sediment Flux ◽  
Shelf Edge ◽  
Late Cenozoic ◽  
China Sea ◽  
Shelf Margin ◽  
Shelf Margins ◽  
Basin Margin

<p>This study discusses the sedimentary flux, and sedimentary system source tracking on the shelf margins of Yinggehai (YGH) and Qiongdongnan (QDN) Basins, Northern South China Sea. The shelf margin clinoforms of YGH and QDN Basins, have grown since the Late Cenozoic (10.5 Ma), which generated more than 4 km-thick shelf prism above the T40 surface. By using the core, well drilling data, 2D and 3D seismic surveys, this study aims to: ① demonstrate the geometry morphology and architecture of the clinoforms, while the shelf margin trajectory (including the shelf-edge trajectory and toe of slope trajectory) showing down-flatting and rising patterns where the progradation and aggradation happened through the vertical evolution; ② estimate sediment supply values, load volumes, and their changes since the Late Cenozoic, predict ratio of the sediment flux across shelf-edge during their dynamic processes; ③ investigate the contradiction and correlation among the phenomena that sediments show distinctly increasing in flux, decreasing in grain size, and response delay of flux rate peak since 2-4 Ma. The preliminary results show that the vertical sediment accumulation rate increased significantly across the entire YGH and QDN Basin margin system after 2.4 Ma, with a marked increase in mud content that likely caused by long‐distance, alongshore currents with high content of mud during the Pleistocene. Furthermore, laterally, the estimated total sediment flux onto the margin shows a dramatic decline from west to east while moving away from the Red River depocenter, as well as a decrease in the percentage of total discharge crossing the shelf break in this same direction. The overall margin geometry shows a remarkable change from sigmoidal, strongly progradational and aggradational in the west to weakly progradational in the east of QDN Basin margin. The Late Cenozoic shelf margin growth, with its overall increased sediment flux, responded to global, high‐frequency transgressive‐regressive climate cycles during a falling global sea level and gradual cooling temperature in this icehouse period.</p>

Polarity Variations of Internal Solitary Waves over the Continental Shelf of the Northern South China Sea: Impacts of Seasonal Stratification, Mesoscale Eddies, and Internal Tides

2018 ◽  
Vol 48 (6) ◽  
pp. 1349-1365 ◽  
Author(s):  
Xiaojiang Zhang ◽  
Xiaodong Huang ◽  
Zhiwei Zhang ◽  
Chun Zhou ◽  
Jiwei Tian ◽  
...  
Keyword(s):  
South China Sea ◽  
Continental Shelf ◽  
South China ◽  
Northern South China Sea ◽  
Internal Tides ◽  
Thermocline Depth ◽  
China Sea ◽  
Seasonal Stratification ◽  
Anticyclonic Eddies ◽  
The Impact

AbstractSpatiotemporal variations in internal solitary wave (ISW) polarity over the continental shelf of the northern South China Sea (SCS) were examined based on mooring-array observations from October 2013 to June 2014. Depression ISWs were observed at the easternmost mooring, where the water depth is 323 m. Then, they evolved into elevation ISWs at the westernmost mooring, with a depth of 149 m. At the central mooring, with a depth of 250 m, the ISWs generally appeared as depression waves in autumn and spring but were elevation waves in winter. Seasonal variations in stratification caused this seasonality in polarity. On the intraseasonal time scales, anticyclonic eddies can modulate ISW polarity at the central mooring by deepening the thermocline depth for periods of approximately 8 days. During some days in autumn and spring, depression ISWs and ISWs in the process of changing polarity from depression to elevation appeared at time intervals of 10–12 h because of the thermocline deepening caused by internal tides. Isotherm anomalies associated with eddies and internal tides have a more significant contribution to determining the polarity of ISWs than do the background currents. The observational results reported here highlight the impact of multiscale processes on the evolution of ISWs.

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