scholarly journals GEODETIC ASPECTS OF THE MARITIME DELIMITATION WITH THE USA AND THE PARTIAL REVISED SUBMISSION OF RUSSIA IN RESPECT OF THE CONTINENTAL SHELF IN THE ARCTIC OCEAN

2015 ◽  
Vol 7 (5) ◽  
pp. 63-73
Author(s):  
Yury Georgievich Firsov ◽  
Keyword(s):  
Continental Shelf ◽  
Arctic Ocean ◽  
The Arctic ◽  
The Arctic Ocean ◽  
The Usa

scholarly journals Consultative meetings of non-Arctic states on the status of the Arctic

2021 ◽  
Vol 12 (2) ◽  
pp. 296-318
Author(s):  
Alexander N. Vylegzhanin ◽  
◽  
Elena V. Kienko ◽  
Keyword(s):  
South Korea ◽  
Arctic Ocean ◽  
The Arctic ◽  
Legal Regime ◽  
Arctic Council ◽  
The Arctic Ocean ◽  
The Status ◽  
The Usa ◽  
Arctic Policy ◽  
New Instruments

The article, in the context of the contemporary status of the Arctic, examines the legal and political documents adopted by China, Japan and South Korea in regard to their arctic policy, including those agreed upon by these three States. The alarming reaction to such documents in the Arctic coastal states, firstly, in the USA and Canada, is also considered in the article. Relevant western scholars’ arguments are scrutinized, such as the increase of “China’s military power”; China’s “insatiable appetite” for access to natural resources in the Arctic; the argument that “China seeks to dominate” the Arctic and the situation when “the Arctic Council is split”; the notion that China makes other non-Arctic States create separate legal documents concerning the regime of the Arctic Ocean. The article concludes that the western interpretation of such documents is alarming only in relation to China. The research shows that up till now there are no grounds for such estimations of China’s negative role. However, statements by Chinese officials as cited in the article and some provisions stipulated in “China’s Arctic policy” contradict the common will of the Arctic coastal states in regard to the legal regime of the Arctic Ocean as reflected in the Ilulissat Declaration of 2008. In such a dynamic legal environment, new instruments of collaboration are in demand, which might involve China and other non-Arctic states in maintaining the established legal regime of the Arctic. Thus, the new instruments would deter the creation (with unpredictable consequences) by China, Japan and South Korea of new trilateral acts relating to the status of the Arctic.

Mercury and methylmercury along a transect from the Lena river estuary across the Laptev Sea Shelf

2020 ◽  
Author(s):  
Van Liem Nguyen ◽  
Birgit Wild ◽  
Örjan Gustafsson ◽  
Igor Semiletov ◽  
Oleg Dudarev ◽  
...  
Keyword(s):  
Organic Matter ◽  
Continental Shelf ◽  
Arctic Ocean ◽  
River Delta ◽  
The Arctic ◽  
Laptev Sea ◽  
Terrestrial Organic Matter ◽  
Lena River ◽  
The Arctic Ocean ◽  
The Laptev Sea

<p>Widespread accelerated permafrost thawing is predicted for this century and beyond. This threatens to remobilize the large amounts of Mercury (Hg) currently ‘locked’ in Arctic permafrost soils to the Arctic Ocean and thus potentially lead to severe consequences for human and wildlife health. Future risks of Arctic Hg in a warmer climate are, however, poorly understood. One crucial knowledge gap to fill is the fate of Hg once it enters the marine environment on the continental shelves. Arctic rivers are already today suggested to be the main source of Hg into the Arctic Ocean, with dissolved and particulate organic matter (DOM and POM, respectively) identified as important vectors for the land to sea transport.</p><p>In this study, we have investigated total Hg (HgT) and monomethylmercury (MeHg) concentrations in surface sediments from the East Siberian Arctic Shelf (ESAS) along a transect from the Lena river delta to the Laptev Sea continental slope. The ESAS is the world’s largest continental shelf and receives large amounts of organic carbon by the great Arctic Russian rivers (e.g., Lena, Indigirka and Kolyma), remobilized from continuous and discontinuous permafrost regions in the river catchments, and from coastal erosion. Data on HgT and MeHg levels in ESAS sediments is however limited. Here, we observed concentrations of Hg ranging from 30 to 96 ng Hg g<sup>-1</sup> d.w. of HgT, and 0.03 to 9.5 ng Hg g<sup>-1</sup> d.w. of MeHg. Similar concentrations of HgT were observed close to the river delta (54 ± 19 ng Hg g<sup>-1</sup> d.w.), where >95 % of the organic matter is of terrestrial origin, and the other section of the transect (42 ± 7 ng Hg g<sup>-1</sup> d.w.) where the terrestrial organic matter is diluted with carbon from marine sources. In contrast, we observed higher concentrations of MeHg close to the river delta (0.72 ± 0.71 ng Hg g<sup>-1</sup> d.w. as MeHg) than further out on the continental shelf (0.031 ± 0.71 ng Hg g<sup>-1</sup> d.w. as MeHg). We also observed a positive correlation between the MeHg:Hg ratio and previously characterized molecular markers of terrestrial organic matter (Bröder et al. Biogeosciences (2016) & Nature Com. (2018)). We thus suggest riverine inputs, rather than in situ MeHg formation, to explain observed MeHg trends.</p>

The North Pole Seabed Nature Reserve as a Provisional Arrangement

2012 ◽  
Vol 27 (1) ◽  
pp. 97-133
Author(s):  
Olya Gayazova
Keyword(s):  
Continental Shelf ◽  
Arctic Ocean ◽  
Nature Reserve ◽  
North Pole ◽  
The Arctic ◽  
Median Line ◽  
Outer Continental Shelf ◽  
The North ◽  
The Arctic Ocean ◽  
Positive Direct

Abstract That the geographic North Pole is the Arctic Schelling point, is implicit in the Russian submission to the Commission on the Limits of the Continental Shelf. I assess this premise vis-à-vis three other approaches to the outer continental shelf delimitation in the Arctic Ocean—the median-line method; a joint submission; and an international zone around the North Pole—and show that both the premise and the alternatives have limitations. Then I explain how an agreement between the Arctic Ocean states (the A5) to establish a seabed nature reserve north of 88°20´N and within 100 nm from the 2,500-meter isobath overcomes those limitations and what positive direct and indirect effects may come from it.

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