Preface: Earth system evolution of the Pacific and Indian oceans and the South China Sea

2016 ◽  
Vol 51 ◽  
pp. 5-11 ◽  
Author(s):  
Sanzhong Li ◽  
Guangxue Li ◽  
Xin Liu ◽  
Ian Somerville
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Earth System ◽  
The South ◽  
System Evolution ◽  
China Sea ◽  
The Pacific

scholarly journals The Changing Influences of ENSO and the Pacific Meridional Mode on Mesoscale Eddies in the South China Sea

2019 ◽  
Vol 32 (3) ◽  
pp. 685-700 ◽  
Author(s):  
Pengfei Tuo ◽  
Jin-Yi Yu ◽  
Jianyu Hu
Keyword(s):  
South China Sea ◽  
Wind Stress ◽  
South China ◽  
Southern Oscillation ◽  
The South China Sea ◽  
Eddy Correlation ◽  
The South ◽  
Vector Method ◽  
China Sea ◽  
The Pacific

This study finds that the correlation between El Niño–Southern Oscillation (ENSO) and the activity of mesoscale oceanic eddies in the South China Sea (SCS) changed around 2004. The mesoscale eddy number determined from satellite altimetry observations using a geometry of the velocity vector method was significantly and negatively correlated with the Niño-3.4 index before 2004, but the correlation weakened and became insignificant afterward. Further analyses reveal that the ENSO–eddy relation is controlled by two major wind stress forcing mechanisms: one directly related to ENSO and the other indirectly related to ENSO through its subtropical precursor—the Pacific meridional modes (PMMs). Both mechanisms induce wind stress curl variations over the SCS that link ENSO to SCS eddy activities. While the direct ENSO mechanism always induces a negative ENSO–eddy correlation through the Walker circulation, the indirect mechanism is dominated by the northern PMM (nPMM), resulting in a negative ENSO–eddy correlation before 2004, and by the southern PMM (sPMM) after 2004, resulting in a positive ENSO–eddy correlation. As a result, the direct and indirect mechanisms enhance each other to produce a significant ENSO–eddy relation before 2004, but they cancel each other out, resulting in a weak ENSO–eddy relation afterward. The relative strengths of the northern and southern PMMs are the key to determining the ENSO–eddy relation and may be related to a phase change of the interdecadal Pacific oscillation.

An overview of 10-year observation of the South China Sea branch of the Pacific to Indian Ocean throughflow at the Karimata Strait

2019 ◽  
Vol 38 (4) ◽  
pp. 1-11 ◽  
Author(s):  
Zexun Wei ◽  
Shujiang Li ◽  
R. Dwi Susanto ◽  
Yonggang Wang ◽  
Bin Fan ◽  
...  
Keyword(s):  
Indian Ocean ◽  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
The Pacific ◽  
Karimata Strait

New species and records of deep-water Orbiniidae (Annelida, Polychaeta) from the Eastern Pacific continental slope, abyssal Pacific Ocean, and the South China Sea

Zootaxa ◽  
2020 ◽  
Vol 4730 (1) ◽  
pp. 1-61
Author(s):  
JAMES A. BLAKE
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
South China Sea ◽  
Continental Slope ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
The Pacific ◽  
A New Species

Eighteen species of Orbiniidae, 15 new to science, are reported from deep-sea habitats in the Pacific Ocean and the South China Sea. The collection includes specimens from continental slope and abyssal soft sediments as well as hydrothermal vent and methane seep sites. New collections of Califia calida Hartman, 1957, Naineris uncinata Hartman, 1957, and Phylo nudus (Moore, 1911) allow redescription and new distributional records of these species to be documented. Five species of Leitoscoloplos: L., cliffordi n. sp., L. gordaensis n sp., L. lunulus n. sp., L. sahlingi n. sp., and L. williamsae n. sp. are described together with a new species of Berkeleyia, B. lelievre n. sp., two new species of Scoloplos: S. californiensis n. sp. and S. sparsaciculus n. sp., and a new species of Leodamas, L. bathyalis n. sp. In addition, six new species of Orbiniella are described: O. abyssalis n. sp., O. eugeneruffi n. sp., O. grasslei n. sp., O. longilobata n. sp., O. rugosa n. sp., and O. tumida n. sp. 

scholarly journals A Critical Assessment of China’s Role in the South China Sea Dispute

2020 ◽  
Vol 13 (4) ◽  
pp. 169
Author(s):  
Junyuan Peng ◽  
Jing Shi
Keyword(s):  
South China Sea ◽  
Natural Resources ◽  
South China ◽  
Vital Role ◽  
Critical Assessment ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
The Pacific ◽  
The Stability

South China Sea is only a small part on the map, but it plays a vital role in the stability of the Pacific-Asian region. South China Sea issue has been under spotlight. Five countries have claimed their rights on these tiny islands splashed in the region of South China Sea. Spratly Islands (Nansha) is endowed with abundant natural resources of petroleum, gas, and others. China, as an emerging super power, plays an important role in maintaining the stability of the region. Which role will China play, a bull in the china shop or a coordinator in finding a peaceful solution? This paper attempts to answer this question by presenting a critical assessment of China’s role in the South China Sea dispute.

Responses of the South China Sea to Mesoscale Disturbances from the Pacific

2020 ◽  
pp. 243-287
Author(s):  
Lingling Xie ◽  
Quanan Zheng ◽  
Mingming Li ◽  
Junyi Li ◽  
Chung-Ru Ho
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
The Pacific

scholarly journals Imprint of the Pacific Decadal Oscillation on the South China Sea Throughflow Variability*

2013 ◽  
Vol 26 (24) ◽  
pp. 9797-9805 ◽  
Author(s):  
Kai Yu ◽  
Tangdong Qu
Keyword(s):  
South China Sea ◽  
Wind Stress ◽  
South China ◽  
Pacific Decadal Oscillation ◽  
The South China Sea ◽  
North Equatorial Current ◽  
The South ◽  
China Sea ◽  
South China Sea Throughflow ◽  
The Pacific

Abstract Analysis of the 62-yr hindcast outputs from an eddy-resolving ocean general circulation model reveals a prominent decadal variability in the upper-layer (0–745 m) Luzon Strait transport (LST), a key component of the South China Sea throughflow. This variability is in phase with the basin-scale wind stress anomalies associated with the Pacific decadal oscillation (PDO). A composite analysis shows that during the positive phase of the PDO, the Aleutian low and its related positive wind stress curl anomalies intrude southward, reducing the trade winds and enhancing the westerly wind anomalies in the tropical North Pacific. In response, the North Equatorial Current bifurcation shifts northward, resulting in a weaker Kuroshio east of Luzon and consequently a stronger South China Sea throughflow in the upper 745 m.

scholarly journals Helium and Argon Isotopes in the Fe-Mn Polymetallic Crusts and Nodules from the South China Sea: Constraints on Their Genetic Sources and Origins

Minerals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 471 ◽  
Author(s):  
Yao Guan ◽  
Yingzhi Ren ◽  
Xiaoming Sun ◽  
Zhenglian Xiao ◽  
Zhengxing Guo
Keyword(s):  
South China Sea ◽  
South China ◽  
Noble Gases ◽  
Equilibrium Mixture ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Mn Oxide ◽  
The Pacific ◽  
Argon Isotopes

In this study, the He and Ar isotope compositions were measured for the Fe-Mn polymetallic crusts and nodules from the South China Sea (SCS), using the high temperature bulk melting method and noble gases isotope mass spectrometry. The He and Ar of the SCS crusts/nodules exist mainly in the Fe-Mn mineral crystal lattice and terrigenous clastic mineral particles. The results show that the 3He concentrations and R/RA values of the SCS crusts are generally higher than those of the SCS nodules, while 4He and 40Ar concentrations of the SCS crusts are lower than those of the SCS nodules. Comparison with the Pacific crusts and nodules, the SCS Fe-Mn crusts/nodules have lower 3He concentrations and 3He/4He ratios (R/RA, 0.19 to 1.08) than those of the Pacific Fe-Mn crusts/nodules, while the 40Ar/36Ar ratios of the SCS samples are significantly higher than those of the Pacific counterparts. The relatively low 3He/4He ratios and high 40Ar concentrations in the SCS samples are likely caused by terrigenous detrital input with high radiogenic 4He and 40Ar contents. The SCS crusts and nodules have shorter growth periods, implying that in situ post-formation radiogenic 3He, 4He and 40Ar produced by decay of U, Th and K have no effect on their isotope compositions. Thus, the SCS crusts/nodules inherited the noble gases characteristics of their sources. Helium and Ar isotope compositions in the SCS Fe-Mn crusts and nodules reflect the product of an equilibrium mixture between air-saturated seawater and radiogenic components during their growth, while the partial 3He excess in some SCS samples may represent a little mantle-derived origin. The different He and Ar isotope compositions of the Fe-Mn crusts and nodules between the South China Sea and the Pacific Ocean are due to their different sources and genetic processes. The characteristics of He and Ar isotope compositions in the SCS polymetallic crusts and nodules are similar to the properties of hydrogenetic Fe-Mn oxide/hydroxide precipitates, which reflects mainly the product of an equilibrium mixture between air-saturated seawater and radiogenic components.

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