Trajectory and weathering of oil spill in Daya bay, the South China sea

2020 ◽  
Vol 267 ◽  
pp. 115562
Author(s):  
Zhu Zhen ◽  
Daming Li ◽  
Yanqing Li ◽  
Shou Chen ◽  
Shilong Bu
Keyword(s):  
South China Sea ◽  
Oil Spill ◽  
South China ◽  
The South China Sea ◽  
Daya Bay ◽  
The South ◽  
China Sea

INDUSTRY, GOVERNMENT, AND REGIONAL EFFORTS IN OIL SPILL CONTINGENCY PLANNING: MALAYSIA'S PERSPECTIVES

1995 ◽  
Vol 1995 (1) ◽  
pp. 503-508
Author(s):  
Hussein Bin Rahmat ◽  
Mohd Radzuan Bin Yusof
Keyword(s):  
South China Sea ◽  
Oil Spill ◽  
South China ◽  
Oil Spills ◽  
The South China Sea ◽  
The South ◽  
Contingency Plan ◽  
China Sea ◽  
Oil Spill Response ◽  
Strait Of Malacca

ABSTRACT The increasing incidence of oil spills in the Strait of Malacca and the South China Sea has resulted in growing concern about Malaysia's capability to respond to oil spills in its waters. This concern is compounded by the ever-growing number of oil tankers plying the Strait of Malacca and the South China Sea, as well as the intensifying exploration and development of offshore petroleum resources. Various measures were taken by the government to deal with the problem, including a review of its National Oil Spill Contingency Plan (NOSCP) and incorporating a coordinated and a cost-effective response mechanism among the various government agencies. The incorporation of the Petroleum Industry of Malaysia Mutual Aid Group (PIMMAG), which enables the oil industry to pool its oil spill response resources, reflects the industry's commitment to strengthen the NOSCP. Since the mid 1970s, a number of regional plans have been instituted including the Traffic Separation Scheme for the Strait of Malacca, the Strait of Malacca and Singapore Revolving Fund, the Lombok-Macassar Oil Spill Contingency Plan, the Brunei Bay Oil Spill Contingency Plan, the ASEAN Oil Spill Response Plan, and the proposed ASCOPE Oil Spill Contingency Plan.

scholarly journals Interannual 14C Variations During 1977–1998 Recorded in Coral from Daya Bay, South China Sea

Radiocarbon ◽  
2004 ◽  
Vol 46 (2) ◽  
pp. 595-601 ◽  
Author(s):  
C D Shen ◽  
W X Yi ◽  
K F Yu ◽  
Y M Sun ◽  
Y Yang ◽  
...  
Keyword(s):  
South China Sea ◽  
Correlation Coefficient ◽  
South China ◽  
Interannual Variation ◽  
Southern Oscillation ◽  
Thermal Structure ◽  
The South China Sea ◽  
Daya Bay ◽  
The South ◽  
China Sea

Twenty-two annually banded samples of coral from 1977 to 1998 were collected from Daya Bay, South China Sea, and bomb 14C concentrations were determined. The interannual variation of coral Δ14C is controlled mainly by oceanic factors. In ENSO years, the coastwise upwelling current of the South China Sea has been intensified; hence, the coral Δ14C displays its minimum value. The interannual variation curve of Δ14C in coral bears a relationship with the Southern Oscillation Index (SOI) curves: the correlation coefficient between Δ14C and (SOI)w is 0.43 and the correlation coefficient between Δ14C and (SOI)y is 0.27. The coral Δ14C has no remarkable response to the variation of solar radiation energy. In the past 20 yr or so, the general situation and oceanic thermal structure of the South China Sea are still stable even though interannual variations in atmosphere-sea interaction and upwelling current driven by the tropical energy have occurred.

Taxonomic diversity of fish species in the Daya Bay, the South China Sea

2012 ◽  
Vol 35 (6) ◽  
pp. 863-870 ◽  
Author(s):  
Na-na LI ◽  
Li-na DONG ◽  
Yong-zhen LI ◽  
Hong AI ◽  
Xia LI ◽  
...  
Keyword(s):  
South China Sea ◽  
Fish Species ◽  
South China ◽  
Taxonomic Diversity ◽  
The South China Sea ◽  
Daya Bay ◽  
The South ◽  
China Sea

scholarly journals High-Resolution Observations of Upwelling and Front in Daya Bay, South China Sea

2021 ◽  
Vol 9 (6) ◽  
pp. 657
Author(s):  
Huabin Mao ◽  
Yongfeng Qi ◽  
Chunhua Qiu ◽  
Zhenhua Luan ◽  
Xia Wang ◽  
...  
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
South China ◽  
Water Environment ◽  
The South China Sea ◽  
Daya Bay ◽  
Strong Mixing ◽  
The South ◽  
China Sea ◽  
Order Of Magnitude

Field observations of coastal regions are important for studying physical and biological features. Observations of high-resolution coastal phenomena were obtained by using a tow-yo instrument and a turbulence profiler at Daya Bay in the South China Sea in October 2015. Details of coastal phenomena, including warm water from a nuclear plant discharge, as well as an upwelling, and front, were obtained. The upwelling, with a width of 2 km, resulted in saltier and more turbid water near the bottom, with low chlorophyll-a and dissolved oxygen contents being transported upward to the surface layer and changing the local water environment. The front, with the lateral salinity variations as large as 0.7 psu across 1 km, was active at the water intersection of the South China Sea and Daya Bay. Such events commonly form during weak stratification periods in autumn. Continuous measurements from VMP-250 profiler over circa 22 h revealed active fronts and an averaged dissipation rate of 8 × 10−8 W/kg and diffusivity of 5.8 × 10−5 m2/s (i.e., one order of magnitude larger than in the open ocean) in the thermocline. The front was accompanied by strong mixing, indicating that it had formed at the intersection of different water masses and played an important role in energy dissipation in Daya Bay, further affecting the distribution of ecological elements.

scholarly journals The Effects of Hypoxia and Anthropogenic Disturbance on the Distribution, Abundance and Recruitment of the Sea Cucumber Holothuria leucospilota at the Mouth of a Subtropical Bay, China

2021 ◽  
Vol 8 ◽  
Author(s):  
Zonghe Yu ◽  
Yingqiu Zhang ◽  
Lei Zhou ◽  
Hongyan Sun
Keyword(s):  
South China Sea ◽  
South China ◽  
Anthropogenic Disturbance ◽  
Sea Cucumber ◽  
Larval Settlement ◽  
Open Water ◽  
The South China Sea ◽  
Daya Bay ◽  
The South ◽  
China Sea

Despite the commercial importance of the sea cucumber Holothuria leucospilota increasing in recent years, little is known of its spatial distribution and ecology in the South China Sea. We investigate the distribution, abundance, and recruitment of H. leucospilota from 2017 to 2020 at two sites (S1 and S2) in Daya Bay, a typical subtropical bay which is strongly influenced by human activities in the South China Sea. We report hypoxia to drive H. leucospilota from deeper into shallower waters with higher DO concentrations at the mouth of Dapeng Cove in Daya Bay (S1), particularly during summer. Population size at S1 decreased by 90% from 2017 levels, before this area was opened to the public in 2018; recruitment was not observed by August (summer) of 2020. In contrast, in summers of 2017 and 2020, H. leucospilota abundance at S2, a protected open-water area, increased by 84%, and the proportion of small-sized (recently recruited) sea cucumber in the population increased by 20%. Severe summer hypoxia at S1 could negatively influence H. leucospilota spawning and larval settlement, which combined with depletion of broodstock because of fishing pressure and/or hypoxia-induced mortality, could inhibit recruitment. In contrast, higher DO concentrations and abundant broodstock during summer (the breeding season) favoured recruitment of H. leucospilota at S2. Overall, hypoxia and anthropogenic disturbance impede recovery of H. leucospilota at S1, while at the protected S2, larvae may be released to settle in nearby areas. It is imperative to develop a better understanding of the biology, ecology and conservation of tropical sea cucumbers in China.

THE GROWTH IN ENERGY ACTIVITIES IN THE SOUTH CHINA SEA – ARE WE TRULY PREPARED?

2014 ◽  
Vol 2014 (1) ◽  
pp. 825-836
Author(s):  
Yoppy Tan
Keyword(s):  
South China Sea ◽  
Crude Oil ◽  
Oil Spill ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Energy Trade ◽  
Political Challenge ◽  
Trade Route

ABSTRACT Stretching from Singapore and the Strait of Malacca chokepoint in the southwest to the Strait of Taiwan in the northeast, the South China Sea is one of the most important energy trade routes in the world. Almost a third of global crude oil and over half of global liquefied natural gas (LNG) passes through the South China Sea each year. Coupled with the significant economy growth from China, that is the world's largest oil importer, protecting the flow of oil becomes a prime consideration of the South East and East Asia governments. All of these factors make the South China Sea to hold one of the highest potential for oil spill, be it by quantity of oil or frequency of energy activities. In the region, our industry faces increasing political challenge due to the disputed territorial waters and hence if an incident affecting multiple countries such as an oil spill occurs, the response may be chaotic if not adequately prepared for. The duty is on industry to work with regional governmental groups to promote joined-up response that is sufficiently robust and flexible to deal with both marine and well-control incidents. Other factors that could pose a major challenge are the understanding of response tool kits and prioritization given to national environmental laws and regulations which will vary amongst the affected administrations. Has there been sufficient investigation into the range of national laws which could help/hinder inter-regional approach? What about each of the area contingency plan along the South China Sea? Is there sufficient data on the crude oil characteristics in this region and the availability of Stockpile of equipment along this stretch of the trade route? This paper provides an overview of the oil industry's response to the growing energy activities in the South China Sea using case studies to illustrate the situations that are still occurring in practice.

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