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Evgeny Chuvilin, Valentina Ekimova, Boris Bukhanov, Sergey Grebenkin, Natalia Shakhova and Igor Semiletov
Destabilization of intrapermafrost gas hydrate is one possible reason for methane emission on the Arctic shelf. The formation of these intrapermafrost gas hydrates could occur almost simultaneously with the permafrost sediments due to the occurrence of a...
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Evgeny Chuvilin, Gennadiy Tipenko, Boris Bukhanov, Vladimir Istomin and Dimitri Pissarenko
The thermal interaction of a gas production well with ice-rich permafrost that bears relict gas hydrates is simulated in Ansys Fluent using the enthalpy formulation of the Stefan problem. The model admits phase changes of pore ice and hydrate (ice meltin...
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Alexander Ulyantsev, Natalya Polyakova, Ivan Trukhin, Yulia Parotkina, Oleg Dudarev and Igor Semiletov
This paper emphasises an ionic composition of the pore water of bottom sediments and subsea permafrost as an indicator of salinization of the thawed strata. Based on measurements of concentration of sodium (Na+), potassium (K+), calcium (Ca2+), and magne...
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Tatiana V. Matveeva, Valery D. Kaminsky, Anastasiia A. Semenova and Nikolai A. Shchur
The key factors controlling the formation and dynamics of relicpermafrost and the conditions for the stability of associated gas hydrates have been investigated using numerical modeling in this work. A comparison was made between two scenarios that diffe...
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Denis Chernykh, Vladimir Yusupov, Aleksandr Salomatin, Denis Kosmach, Natalia Shakhova, Elena Gershelis, Anton Konstantinov, Andrey Grinko, Evgeny Chuvilin, Oleg Dudarev, Andrey Koshurnikov and Igor Semiletov
Seeps found offshore in the East Siberian Arctic Shelf may mark zones of degrading subsea permafrost and related destabilization of gas hydrates. Sonar surveys provide an effective tool for mapping seabed methane fluxes and monitoring subsea Arctic perma...
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Nimazhap Badmaev and Aleksandr Bazarov
The monitoring network for the measurement of atmospheric and soil climate parameters was created at the southern boundary of the permafrost zone within the territory of the Republic of Buryatia, Russian Federation. Based on the obtained data, the proces...
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Petr B. Semenov, Anfisa A. Pismeniuk, Sergei A. Malyshev, Marina O. Leibman, Irina D. Streletskaya, Elizaveta V. Shatrova, Alexander I. Kizyakov and Boris G. Vanshtein
Permafrost thawing leads to mobilization of the vast carbon pool into modern biogeochemical cycling through the enhanced release of dissolved organic matter (DOM) and production of greenhouse gases (CO2 and CH4). In this work, we focus on the study of me...
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Banabas Dogah, Vahid Atashbari, Mohabbat Ahmadi and Brent Sheets
Alaska holds more than 68 billion barrels of proved oil reserves and more than 36.7 trillion cubic feet of proved natural gas reserves with some special conditions such as proximity to permafrost, making Alaskan petroleum reserves unique. The low tempera...
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Jan-Olof Selroos, Hua Cheng, Patrik Vidstrand and Georgia Destouni
A key question for the evolution of thermokarst wetlands and lakes in Arctic and sub-Arctic permafrost regions is how large-scale warming interacts with local landscape conditions in driving permafrost thaw and its spatial variability. To answer this que...
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Liangliang Duan, Xiuling Man, Barret L. Kurylyk and Tijiu Cai
Rapid permafrost thaw and precipitation regime shifts are altering surface and subsurface hydrological processes in arctic and subarctic watersheds. Long-term data (40 years) from two large permafrost watersheds in northeastern China, the Tahe River and ...
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Liangliang Duan, Xiuling Man, Barret L. Kurylyk, Tijiu Cai
Pág. 1 - 15
Rapid permafrost thaw and precipitation regime shifts are altering surface and subsurface hydrological processes in arctic and subarctic watersheds. Long-term data (40 years) from two large permafrost watersheds in northeastern China, the Tahe River and ...
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Rinat M. Manasypov, Artem G. Lim, Ivan V. Kri?kov, Tatiana V. Raudina, Danil G. Kurashev, Liudmila S. Shirokova and Oleg S. Pokrovsky
Thermokarst lakes in the Western Siberian Lowland (WSL) are major environmental factors controlling organic carbon and trace metal storage in inland waters and greenhouse gas emissions to the atmosphere. In contrast to previously published research devot...
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Rinat M. Manasypov, Artem G. Lim, Ivan V. Kri?kov, Liudmila S. Shirokova, Sergey N. Vorobyev, Sergey N. Kirpotin and Oleg S. Pokrovsky
Thermokarst lakes and ponds formed due to thawing of frozen peat in high-latitude lowlands are very dynamic and environmentally important aquatic systems that play a key role in controlling C emission to atmosphere and organic carbon (OC), nutrient, and ...
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Stella Eyrikh, Gennady Boeskorov, Tatyana Serykh, Marina Shchelchkova and Tatyana Papina
The paper presents the first results of Hg determination in the hair of prehistorical animals (woolly mammoth, steppe bison, and woolly rhino). Hair of prehistorical mammals can be used as an archive that preserves changes of environmental pollution at t...
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Natalia Shakhova, Igor Semiletov and Evgeny Chuvilin
This paper summarizes current understanding of the processes that determine the dynamics of the subsea permafrost?hydrate system existing in the largest, shallowest shelf in the Arctic Ocean; the East Siberian Arctic Shelf (ESAS). We review key environme...
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A. A. Fedotov,V.V. Kaniber,P. V. Khrapov
Pág. 51 - 65
The article studies the initial boundary value problem for a non-stationary one-dimensional heat equation that simulates the distribution of soil temperature in the area of Norilsk. The mathematical model is based on solid-liquid phase transitions. To de...
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