Changes in terrestrial ecosystem since 30 Ma in East Asia: Stable isotope evidence from black carbon in the South China Sea

Geology ◽  
2003 ◽  
Vol 31 (12) ◽  
pp. 1093 ◽  
Author(s):  
Guodong Jia ◽  
Ping'an Peng ◽  
Quanhong Zhao ◽  
Zhimin Jian
Keyword(s):  
Stable Isotope ◽  
South China Sea ◽  
East Asia ◽  
Black Carbon ◽  
South China ◽  
Terrestrial Ecosystem ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Isotope Evidence

scholarly journals Monopole Mode of Precipitation in East Asia Modulated by the South China Sea Over the Last Four Centuries

2019 ◽  
Vol 46 (24) ◽  
pp. 14713-14722 ◽  
Author(s):  
Feng Shi ◽  
Hugues Goosse ◽  
François Klein ◽  
Sen Zhao ◽  
Ting Liu ◽  
...  
Keyword(s):  
South China Sea ◽  
East Asia ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea

REGIONAL SECURITY COMPLEX IN ASEAN: Neutrality and Centrality at Brink in the South China Sea Issue

2017 ◽  
Vol 7 (1) ◽  
pp. 43-54
Author(s):  
Arfin Sudirman
Keyword(s):  
South China Sea ◽  
East Asia ◽  
South China ◽  
International System ◽  
The South China Sea ◽  
Regional Security ◽  
South East Asia ◽  
The South ◽  
China Sea ◽  
East Asia Region

The South China Sea conflict has been a highly sensitive issue for the last 5 years in ASEAN. China and the US have been using the South China Sea as the New Cold War Arena of power and military hegemonic competition in the South East Asia region. This has been a major challenge for ASEAN as the only regional organization in the South East Asia region that has direct in the area must take major role in managing and resolving the dispute peacefully even though ASEAN has no defense pact like NATO. This paper argues that ASEAN, at this moment, must maintain its role as a mediator and independent-negotiator in the region but at the same time apply its principle of gradually adapting with the new international system. This article also suggests that in the future, ASEAN can take a major role in the governance of the South China Sea and the South East Asia region.

scholarly journals EAST ASIA: THE SYSTEMIC DISORDER AND THE SOUTH CHINA SEA DISPUTE. AN INTERNATIONAL LAW PROSPECT

2021 ◽  
pp. 66-83
Author(s):  
Victor Alexandre TEIXEIRA ◽  
Jose Francisco Lynce Zagallo PAVIA
Keyword(s):  
South China Sea ◽  
East Asia ◽  
International Law ◽  
South China ◽  
International System ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Systemic Disorder ◽  
Regional Order

"Abstract: This paper analyzes the South China Sea dispute when the international system lacks orientation and respect for the norms, values, and institutions. The conflict is conceptualized to encompass the States, International Law, and the East Asia order. The evidence demonstrates that ASEAN’s regional order is more efficient than the US-Led Liberal order through UNCLOS. Additionally, it is necessary to overhaul and strengthen the institutional mechanisms from international law regarding the United Nations. A change in the order and an international recognition are recommended to legitimize regional institutions to arbitrate territorial disputes. Keywords: ASEAN, regional order, conflict resolution, South China Sea Dispute."

scholarly journals Black carbon over the South China Sea and in various continental locations in South China

2013 ◽  
Vol 13 (24) ◽  
pp. 12257-12270 ◽  
Author(s):  
D. Wu ◽  
C. Wu ◽  
B. Liao ◽  
H. Chen ◽  
M. Wu ◽  
...  
Keyword(s):  
South China Sea ◽  
Black Carbon ◽  
South China ◽  
Rainy Season ◽  
Sampling Period ◽  
Dry Season ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Urban Sites

Abstract. Black carbon (BC) is an important atmospheric constituent as an air pollutant and as a climate forcer. To our knowledge, field measurements of BC have not been reported over the South China Sea. Observations of light-absorption coefficients (σabs) and BC concentrations by Aethalometer were conducted on Yongxing Island in the South China Sea and at five continental sites in the Pearl River delta (PRD) region, South China, in two periods: 16 May–20 June 2008 in the rainy season and 12 December 2008–8 January 2009 in the dry season. At the oceanic site, the daily average BC concentrations varied from 0.28 to 2.14 μg m−3 and variations of BC were small between the two periods (0.67 in the dry season sampling period and 0.54 μg m−3 in the rainy season sampling period). Similarly, little difference in BC level was found at a rural site in PRD between the two sampling periods (2.88 and 2.62 μg m–3). At the PRD urban sites, the daily average concentration of BC ranged from 1.56 to 37.9 μg m−3, higher in the dry season sampling period (12.31 μg m–3) and lower in the rainy season sampling period (6.17 μg m–3). The observed average σabs values in rainy vs. dry season sampling periods are 119 vs. 62 Mm−1 at the PRD urban sites, 29 vs. 26 Mm−1 at the PRD background site, and 8.4 vs. 7.2 Mm−1 at the marine site. At urban/suburban PRD sites, BC was observed to have a diurnal pattern of higher concentrations at night and at the urban sites a small peak in the early morning rush hour.

Water, heat and salt budgets over South East Asia seas : a high resolution modeling approach

2021 ◽  
Author(s):  
Marine Herrmann ◽  
Ngoc Trinh Bich ◽  
Caroline Ulses ◽  
Patrick Marsaleix ◽  
Thomas Duhaut ◽  
...  
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
East Asia ◽  
Ocean Circulation ◽  
South China ◽  
The South China Sea ◽  
South East Asia ◽  
The South ◽  
China Sea ◽  
Numerical Studies

<p>South East Asia seas, that include the South China Sea and the Indonesian Seas, transfer the warm and light waters of the surface branch of the global thermohaline circulation between the Pacific and Indian Oceans. To better understand the key contribution of South East Asia seas in the regional and global climate and ocean circulation, it is therefore essential to improve our knowledge of the functioning and variability at different scales of water, heat and salt budgets over this region. The complex topography of this region makes it difficult to study those budgets based on in-situ measurements only. Numerical studies are necessary and relevant to complement and interpret those measurements, however until now, most of numerical studies were performed at low resolution and/or on short periods.</p><p> </p><p>To better quantify and understand the contributions of ocean, rivers and atmosphere to the variability at different scales of the water, heat and salt budgets over South East Asia seas, high resolution configurations (< 5 km) of the SYMPHONIE ocean model are developed over the area. State of the art datasets available from COPERNICUS and ECMWF are used to prescribe boundary conditions. Each term of the budgets is computed online in order to obtain rigorously closed budgets.</p><p> </p><p>This methodology applied on the 2009-2018 period, that includes strong El Niño and La Niña years as well as neutral years, allows us to better characterize the seasonal to interannual variability of water, salt and heat budgets over the South East Asia seas, by quantifying and explaining the contribution of each factor (lateral fluxes, surface fluxes, rivers, internal variations, ENSO). We examine in particular the surface salinification of the South China Sea that was observed by previous authors between 2012 and 2016 (Zeng et al. 2018, doi:10.1002/2017GL076574) : our simulations suggest that it is mostly related to an increase of net lateral water influx at Luzon strait, itself induced by a deficit of precipitation over the region, rather than to an increase of the salinity of the inflowing water. We finally also explore the role of tides and mesoscale processes. This methodology, our key results and the future steps of this work, that include the on-going development of an ocean-atmosphere regional coupled model, will be synthetically summarized.</p>

Influence of Siberian Blocking on Long-Lived Cold Surges over the South China Sea

2020 ◽  
Vol 33 (16) ◽  
pp. 6945-6956
Author(s):  
Bo Pang ◽  
Riyu Lu ◽  
Rongcai Ren
Keyword(s):  
South China Sea ◽  
East Asia ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
Sea Level Pressure ◽  
Cold Surge ◽  
China Sea ◽  
Cold Surges ◽  
Extratropical Circulation

AbstractCold surges occur frequently over the South China Sea (SCS) in winter, and most of them last only a few days. However, some cold surge events can persist longer, for instance, more than 5 days. This study focuses on these long-lived cold surge events and investigates the associated extratropical circulation anomalies. The results indicate that long-lived cold surges, characterized as strong northerlies over the SCS, can be triggered by a successive high anomaly center over East Asia. Accompanying this is an anomalously extensive and quasi-stationary anticyclone over Siberia in the midtroposphere, hinting at a more frequent occurrence of Siberian blocking. Further analyses reveal that the blocking frequency is indeed significantly high over 90°–150°E from day −4 to day +2 relative to the onset of long-lived cold surge events. Furthermore, there exist significant correlations between the leading occurrence of Siberian blocking and the sea level pressure (SLP) anomalies over East Asia, which are directly related to long-lived cold surges. The intensification of the high SLP anomaly over East Asia is found to mainly result from cold advection induced by the anomalous northerly winds along the southeastern edge of the Siberian blocking.

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