scholarly journals Determination of stress-strain properties of thawing soils in oedometer

2021 ◽  
Vol 263 ◽  
pp. 02027
Author(s):  
Mikhail Rabinovich ◽  
Anastasia Alekseeva
Keyword(s):  
Physical State ◽  
Arctic Region ◽  
European Part ◽  
The Arctic ◽  
Sampling Depth ◽  
Frozen Soils ◽  
European Part Of Russia ◽  
Compressibility Coefficient ◽  
The Arctic Region

Article presents relation of thawing coefficient (Ath) and compressibility coefficient during thawing (m) to the sampling depth and physical state of frozen soils in loams, typical for the Arctic region of the European part of Russia. Conclusions are drawn that help to predict thawing deformation of the tested soils according to their physical characteristics.

International Legal Regulation of Cooperation of the Russian Federation and Neighboring States in the Arctic on the Basis of Bilateral Treaties

2016 ◽  
Vol 4 (9) ◽  
pp. 0-0 ◽  
Author(s):  
Владислав Авхадеев ◽  
Vladislav Avkhadeev
Keyword(s):  
International Law ◽  
Mineral Resources ◽  
Arctic Region ◽  
Legal Regulation ◽  
The Arctic ◽  
International Treaties ◽  
The Russian Federation ◽  
Bilateral Treaties ◽  
The Arctic Region

The modern Law of the Arctic regime is administered both at the international law and national law levels. International legal regulation of the Arctic regime is exercised at the level of international multilateral and bilateral treaties. Multilateral treaties are aimed primarily to legal relations that govern the regime of Arctic maritime areas, as well as the decision of environmental issues in the region. Bilateral treaties are aimed to regulate the cross-border problems of neighboring countries. First of all, it means resolving contentious issues of delimitation of maritime areas of the Arctic, cooperation in the field of fisheries and mineral resources. Bilateral treaties are binding only for their members and do not create obligations for third countries. In some cases there are collisions between international bilateral and multilateral agreements on matters relating to the delimitation of neighboring maritime areas. Determination of the effectiveness of existing in the Arctic region international treaties and of their future development needs to be monitored.

scholarly journals International legal status of the Arctic Region and its role within modern system of international relations

2020 ◽  
pp. 12-18
Author(s):  
Nikita Viktorovich Klimanov ◽  
David Eduardovich Mazlumyan
Keyword(s):  
International Relations ◽  
Legal Status ◽  
Complex Analysis ◽  
Current System ◽  
Political Influence ◽  
Arctic Region ◽  
The Arctic ◽  
Negative Consequences ◽  
The Arctic Region

This article examines the image of the Arctic Region as a large geopolitical actor with clear division of the zone of political influence of modern countries. The article reviews the negative aspects of lobbying for the interests of separate countries, which impact situation in the region, as well as negative consequences substantiated by the absence of standardized international legislative regulation of security regime and presence of external actors in the region. Within the framework of this study, the authors carried out a legal and economic analysis of the current geopolitical situation, as well as existing aspects of normative regulation of this branch in the region, as well as concluded on the possibility of joint development of the bottom of the Arctic shelf and realization of projects in the sphere of natural resource management of the Arctic Region. The scientific novelty consists in a brief, but in-depth substantiation of typical characteristics of the current system of international relations, as well as in the complex analysis of significance of the Arctic region on the agenda of world politics, and determination of “Arctic policy” as a separate vector in strategy of the leading countries of the world. The authors consider legal characteristics and existing approaches towards determination of legal status of the Arctic territories, which vary in different political-legal traditions. United Nations Convention on the Law of the Sea of 1982 is the framework document that serves as the basis of national justification of claims in the Arctic Region. The main conclusion consists in the description of the existing conflict of laws, which can be overcome successfully only in terms of mutual, joint, fruitful cooperation of the key political actors that are involved or have political aspirations in the Arctic Region.

Nuclear icebreaker fleet and power supply on the basis of floating power units

2018 ◽  
Vol 35 (4) ◽  
pp. 110-113
Author(s):  
V. A. Tupchienko ◽  
H. G. Imanova
Keyword(s):  
Foreign Policy ◽  
Power Supply ◽  
Nuclear Power ◽  
Arctic Region ◽  
Nuclear Industry ◽  
The Arctic ◽  
Far North ◽  
The Arctic Region

The article deals with the problem of the development of the domestic nuclear icebreaker fleet in the context of the implementation of nuclear logistics in the Arctic. The paper analyzes the key achievements of the Russian nuclear industry, highlights the key areas of development of the nuclear sector in the Far North, and identifies aspects of the development of mechanisms to ensure access to energy on the basis of floating nuclear power units. It is found that Russia is currently a leader in the implementation of the nuclear aspect of foreign policy and in providing energy to the Arctic region.

Chemical Composition of Atmospheric Aerosol in the Arctic Region and Adjoining Seas along the Routes of Marine Expeditions in 2018–2019

2020 ◽  
Vol 33 (5) ◽  
pp. 480-489
Author(s):  
L. P. Golobokova ◽  
T. V. Khodzher ◽  
O. N. Izosimova ◽  
P. N. Zenkova ◽  
A. O. Pochyufarov ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Atmospheric Aerosol ◽  
Arctic Region ◽  
The Arctic ◽  
The Arctic Region

Estimating Friction Reduction ForCasing Operations in High-Angle Wells in The Arctic Region - A Russia Case History

2011 ◽  
Author(s):  
Chimerebere Onyekwere Nkwocha ◽  
Evgeny Glebov ◽  
Alexey Zhludov ◽  
Sergey Galantsev ◽  
David Kay
Keyword(s):  
Case History ◽  
Arctic Region ◽  
Friction Reduction ◽  
The Arctic ◽  
High Angle ◽  
The Arctic Region

scholarly journals Temperature and Relative Humidity Profile Retrieval from Fengyun-3D/HIRAS in the Arctic Region

2021 ◽  
Vol 13 (10) ◽  
pp. 1884
Author(s):  
Jingjing Hu ◽  
Yansong Bao ◽  
Jian Liu ◽  
Hui Liu ◽  
George P. Petropoulos ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Real Time ◽  
Wide Spectrum ◽  
Warm Season ◽  
Arctic Region ◽  
Cold Season ◽  
The Arctic ◽  
Practical Applications ◽  
A New Technique ◽  
The Arctic Region

The acquisition of real-time temperature and relative humidity (RH) profiles in the Arctic is of great significance for the study of the Arctic’s climate and Arctic scientific research. However, the operational algorithm of Fengyun-3D only takes into account areas within 60°N, the innovation of this work is that a new technique based on Neural Network (NN) algorithm was proposed, which can retrieve these parameters in real time from the Fengyun-3D Hyperspectral Infrared Radiation Atmospheric Sounding (HIRAS) observations in the Arctic region. Considering the difficulty of obtaining a large amount of actual observation (such as radiosonde) in the Arctic region, collocated ERA5 data from European Centre for Medium-Range Weather Forecasts (ECMWF) and HIRAS observations were used to train the neural networks (NNs). Brightness temperature and training targets were classified using two variables: season (warm season and cold season) and surface type (ocean and land). NNs-based retrievals were compared with ERA5 data and radiosonde observations (RAOBs) independent of the NN training sets. Results showed that (1) the NNs retrievals accuracy is generally higher on warm season and ocean; (2) the root-mean-square error (RMSE) of retrieved profiles is generally slightly higher in the RAOB comparisons than in the ERA5 comparisons, but the variation trend of errors with height is consistent; (3) the retrieved profiles by the NN method are closer to ERA5, comparing with the AIRS products. All the results demonstrated the potential value in time and space of NN algorithm in retrieving temperature and relative humidity profiles of the Arctic region from HIRAS observations under clear-sky conditions. As such, the proposed NN algorithm provides a valuable pathway for retrieving reliably temperature and RH profiles from HIRAS observations in the Arctic region, providing information of practical value in a wide spectrum of practical applications and research investigations alike.All in all, our work has important implications in broadening Fengyun-3D’s operational implementation range from within 60°N to the Arctic region.

scholarly journals Advancement into the Arctic Region for Bioactive Sponge Secondary Metabolites

Marine Drugs ◽  
2011 ◽  
Vol 9 (11) ◽  
pp. 2423-2437 ◽  
Author(s):  
Samuel Abbas ◽  
Michelle Kelly ◽  
John Bowling ◽  
James Sims ◽  
Amanda Waters ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Arctic Region ◽  
The Arctic ◽  
The Arctic Region

scholarly journals High-time resolved radon-progeny measurements in the Arctic region (Svalbard Islands, Norway): results and potentialities

2017 ◽  
Author(s):  
Roberto Salzano ◽  
Antonello Pasini ◽  
Antonietta Ianniello ◽  
Mauro Mazzola ◽  
Rita Traversi ◽  
...  
Keyword(s):  
Limit Of Detection ◽  
Atmospheric Stability ◽  
Arctic Region ◽  
Climatic Conditions ◽  
The Arctic ◽  
Radon Emanation ◽  
Radon Progeny ◽  
Time Resolved ◽  
Scientific Challenge ◽  
The Arctic Region

Abstract. The estimation of radon progeny in the Arctic region represents a scientific challenge due to the required low limit of detection in consideration of the limited radon emanation associated with permafrost dynamics. This preliminary study highlighted, for the first time, the possibility to monitor radon progeny in the Arctic region with a higher time resolution. The composition of the radon progeny offered the opportunity to identify air masses dominated by long-range transport, in presence or not of near-constant radon progeny instead of long and short lived progenies. Furthermore, the different ratio between radon and thoron progenies evidenced the contributions of local emissions and atmospheric stability. Two different emanation periods were defined in accordance to the permafrost dynamics at the ground and several accumulation windows were recognized coherently to the meteo-climatic conditions occurring at the study site.

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