continental shelf area
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Author(s):  
Margaret Downie ◽  
Denise Gosling

In the United Kingdom, oil and gas workers have been transported by helicopter to their workplace at offshore installations for more than fifty years. During that time, there have been numerous fatal helicopter accidents. Despite calls from trade unions, families, and politicians, a public inquiry has never been held into offshore helicopter transport. The authors consider whether enough has been done to ensure the safety of these workers to meet legal and ethical standards. They analyze the legal position, the implementation of recommendations made in the wake of these accidents, and the way in which the power imbalance between oil and gas companies and helicopter operators influences safety in this area. They conclude that a public inquiry is required into helicopter safety in the U.K. Continental Shelf area.


Paleobiology ◽  
2018 ◽  
Vol 45 (1) ◽  
pp. 70-84 ◽  
Author(s):  
Carl J. Reddin ◽  
Ádám T. Kocsis ◽  
Wolfgang Kiessling

AbstractGeologically rapid climate change is anticipated to increase extinction risk nonuniformly across the Earth's surface. Tropical species may be more vulnerable than temperate species to current climate warming because of high tropical climate velocities and reduced seawater oxygen levels. To test whether rapid warming indeed preferentially increased the extinction risk of tropical fossil taxa, we combine a robust statistical assessment of latitudinal extinction selectivity (LES) with the dominant views on climate change occurring at ancient extinction crises. Using a global data set of marine fossil occurrences, we assess extinction rates for tropical and temperate genera, applying log ratios to assess effect size and Akaike weights for model support. Among the classical “big five” mass extinction episodes, the end-Permian mass extinction exhibits temperate preference of extinctions, whereas the Late Devonian and end-Triassic selectively hit tropical genera. Simple links between the inferred direction of climate change and LES are idiosyncratic, both during crisis and background intervals. More complex models, including sampling patterns and changes in the latitudinal distribution of continental shelf area, show tropical LES to be generally associated with raised tropical heat and temperate LES with global cold temperatures. With implications for the future, our paper demonstrates the consistency of high tropical temperatures, habitat loss, and the capacity of both to interact in generating geographic patterns in extinctions.


2018 ◽  
Vol 2 (2) ◽  
pp. 138
Author(s):  
Abdul Munsharif

Before the entry into force of UNCLOS in 1982, the continental shelf area governed by Article 1 of the Convention IV Geneva Convention on the Law of the Sea in 1958, which was implemented a by Act No. 1 of 1973. The setting through 1958 Geneva Convention on the Law of the Sea benefit only for the developed countries that have the advanced technology. Although UNCLOS 1982 has been in force, but the status of Indonesian Act No. 1 of 1973 still impose as the implementation of the Geneva Conventions Of 1958. Several agreements with neighboring countries are being held between the years 1969- 19972, of course it is very detrimental to the Indonesian Government. In this case the Act No. 1 of 1973, adjusted to international law, namely UNCLOS in 1982 is expected that the regulating of the utilization of natural resources in the continental shelf of Republic Indonesia can provide a fair arrangement. It is Necessary to remember that there is a difference in perception between the Act No. 1 of 1973 with the UNCLOS in 1982 in the matter of setting the area of the continental shelf.


2017 ◽  
Vol 11 (1) ◽  
pp. 41
Author(s):  
Badrudin Badrudin ◽  
Ngurah N. Wiadnyana ◽  
Berbudi Wibowo

Bottom long line fisheries in the continental shelf area of the Arafura Sea has have practised and developed since the last two decades. But bottom long lining in the slope area seemed to be unusual fishing operation for most Indonesian fishers as this fishing activily facing a relatively higher rbks of fishing gear lost.


2017 ◽  
Vol 13 (2) ◽  
Author(s):  
Morgan Watkins

Mineral resources and energy are central to the level of technological sophistication that we have come to expect in our everyday lives. Yet the availability and use of these finite resources is unsustainable, almost by definition, and particularly so when considering fragile ecosystems. This raises the ‘super-wicked’ policy issue, negotiated through resource management legislation, of trying to balance necessary resource use with not irreparably damaging the natural environment (Levin et al., 2012). This article primarily concerns the effects of the Resource Legislation Amendment Bill (2015) on management of the exclusive economic zone (EEZ) and continental shelf area. Omnibus bills that contain nontechnical and contentious amendments continue to challenge civil society’s ability to fully consider the implications of reform. 


2016 ◽  
Vol 13 (14) ◽  
pp. 4167-4185 ◽  
Author(s):  
Timothée Bourgeois ◽  
James C. Orr ◽  
Laure Resplandy ◽  
Jens Terhaar ◽  
Christian Ethé ◽  
...  

Abstract. Anthropogenic changes in atmosphere–ocean and atmosphere–land CO2 fluxes have been quantified extensively, but few studies have addressed the connection between land and ocean. In this transition zone, the coastal ocean, spatial and temporal data coverage is inadequate to assess its global budget. Thus we use a global ocean biogeochemical model to assess the coastal ocean's global inventory of anthropogenic CO2 and its spatial variability. We used an intermediate resolution, eddying version of the NEMO-PISCES model (ORCA05), varying from 20 to 50 km horizontally, i.e. coarse enough to allow multiple century-scale simulations but finer than coarse-resolution models (∼  200 km) to better resolve coastal bathymetry and complex coastal currents. Here we define the coastal zone as the continental shelf area, excluding the proximal zone. Evaluation of the simulated air–sea fluxes of total CO2 for 45 coastal regions gave a correlation coefficient R of 0.8 when compared to observation-based estimates. Simulated global uptake of anthropogenic carbon results averaged 2.3 Pg C yr−1 during the years 1993–2012, consistent with previous estimates. Yet only 0.1 Pg C yr−1 of that is absorbed by the global coastal ocean. That represents 4.5 % of the anthropogenic carbon uptake of the global ocean, less than the 7.5 % proportion of coastal-to-global-ocean surface areas. Coastal uptake is weakened due to a bottleneck in offshore transport, which is inadequate to reduce the mean anthropogenic carbon concentration of coastal waters to the mean level found in the open-ocean mixed layer.


2016 ◽  
Vol 3 (1) ◽  
pp. 54
Author(s):  
Munsharif Abdul Chalim

Before the entry into force of UNCLOS 1982, the continental shelf area governed by Article 1 of the Convention IV Geneva Convention on Law of the Sea 1958, which was implemented by Law No. 1 of 1973. The setting through 1958 Geneva Convention on Law of the Sea benefit for the developed countries only that have the advance technology. To be able to realize the regulating of the use of the continental shelf that is equitable, it is necessary to rebuild or reconstruct the form of national law Act No. 1 In 1973 and international law in the form of the Geneva Convention on Law of the Sea 1958. Two things to note in this reconstruction is the reconstruction of value and the reconstruction of law or settings. Although UNCLOS 1982 has been in force, but the status of Indonesian Act No. 1 of 1973 still impose as the implementation of the Geneva Conventions Year 1958. Several agreements with neighboring countries are being held between the years 1969-19972, of course it is very detrimental to the Indonesia Government. Through reconstruction of national law, in this case the Law No. 1 of 1973, adjusted to international law, namely UNCLOS 1982 is expected that the  regulating of the utilization of natural resources in the continental shelf of Republic Indonesia can provide a fair arrangement. It is necessary to remember that there is a difference in perception between the Law No. 1 of 1973 with the UNCLOS 1982 in the matter of setting the area of the continental shelf.


2015 ◽  
Vol 24 (1) ◽  
pp. 49-50
Author(s):  
Akira Kusaka ◽  
Tsuneo Ono ◽  
Tomonari Azumaya ◽  
Hiromi Kasai ◽  
Sachiko Oguma ◽  
...  

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