Forecasting of Permafrost Boundaries Dynamics

A special issue of Land (ISSN 2073-445X).

Deadline for manuscript submissions: closed (15 January 2024) | Viewed by 2787

Special Issue Editor


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Guest Editor
Department of High-Performance Computer Technologies, Ural Federal University Institute, Mira str. 19, 620002 Yekaterinburg, Russia
Interests: mathematical modeling; permafrost; Arctic regions; climate change; technogenic heat sources; temperature fields in frozen soil; oil and gas fields; stability of pile foundations in Northern cities; partial differential equations; numerical analysis and algorithms; renewable energy; geothermal problems

Special Issue Information

Dear Colleagues,

Permafrost occupies about 25% of the total land area of the world. For example, in Alaska, these areas cover 80% of the total area, in Russia - 65%, in Canada - 50%. Highlands may also be a permafrost zone (in China these areas account for 11% of the territory). Thawing of permafrost due to global warming or various influences related with human activity will be followed by the earth's surface subsidence and development of cryogenic hazardous geological processes. Therefore, the problem of reducing the intensity of thermal interactions in systems "heat source - permafrost" has a particular importance for solving problems of energy saving, environmental protection, safety, cost savings and enhance operational reliability of various engineering structures and buildings. High latitude climate warming in Northern Hemisphere will increase the permafrost soil degradation and cause a significant effect on the carbon and nitrogen fluxes between the atmosphere and tundra ecosystems.  In particular, the arctic soils seasonal thawing depth will increase and a sequestrated carbon and nitrogen in upper frozen soil layers will be involved in active biochemical cycle. With the aim of covering a comprehensive assessment of changes in the dynamics of permafrost boundaries and the impact that these processes have on the environment and engineering structure, authors are invited to submit contributions in the following priority areas:

  • permafrost changes due to technogenic and climatic factors;
  • the feedbacks in the combination of permafrost-ecosystem-climate-civil-industrial systems;
  • operation and development of oil and gas fields in cryolithozone;
  • thermal stabilization of soil, monitoring and assessment of the stability of pile foundations of buildings in Northern cities;
  • the arctic soils seasonal thawing depth;
  • emission of greenhouse gases

Dr. Mikhail Yur`evich Filimonov
Guest Editor

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Keywords

  • permafrost
  • climate change
  • Arctic regions
  • monitoring and forecast
  • mathematical modeling

Published Papers (1 paper)

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Research

21 pages, 11483 KiB  
Article
Modeling the Temperature Field in Frozen Soil under Buildings in the City of Salekhard Taking into Account Temperature Monitoring
by Mikhail Yu. Filimonov, Yaroslav K. Kamnev, Aleksandr N. Shein and Nataliia A. Vaganova
Land 2022, 11(7), 1102; https://0-doi-org.brum.beds.ac.uk/10.3390/land11071102 - 19 Jul 2022
Cited by 3 | Viewed by 1659
Abstract
Most residential buildings and capital structures in the permafrost zone are constructed on the principle of maintaining the frozen state of the foundation soils. The changing climate and the increasing anthropogenic impact on the environment lead to changes in the boundaries of permafrost. [...] Read more.
Most residential buildings and capital structures in the permafrost zone are constructed on the principle of maintaining the frozen state of the foundation soils. The changing climate and the increasing anthropogenic impact on the environment lead to changes in the boundaries of permafrost. These changes are especially relevant in the areas of piling foundations of residential buildings and other engineering structures located in the northern regions since they can lead to serious accidents caused by the degradation of permafrost and decrease the bearing capacity of the soil in such areas. Therefore, organization of temperature monitoring and forecasting of temperature changes in the soil under the buildings is an actual problem. To solve this problem, we use computer simulation methods of three-dimensional nonstationary thermal fields in the soil in combination with real-time monitoring of the temperature of the soil in thermometric wells. The developed approach is verified by using the temperature monitoring data for a specific residential building in the city of Salekhard. Comparison of the results of numerical calculations with experimental data showed good agreement. Using the developed computer software, nonstationary temperature fields under this building are obtained and, on this basis, the bearing capacities of all piles are calculated and a forecast of their changes in the future is given. To avoid decreasing the bearing capacity of piles it is necessary to prevent the degradation of permafrost and to supply the thermal stabilization of the soil. The proposed approach, based on a combination of the soil temperature monitoring and computer modeling methods, can be used to improve geotechnical monitoring methods. Full article
(This article belongs to the Special Issue Forecasting of Permafrost Boundaries Dynamics)
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