Preliminary data on the methane emission from lake seeps of the Western Siberia permafrost zone

Lakes are one of the most important sources of the greenhouse gas methane. Usually, only diffusive emission is counted towards in estimates of the Arctic lakes contribution to the atmospheric methane budget. At the same time, for some regions, giving the importance for the ebullition of various genesis significantly increases previous assessments of ecosystem-based lake methane emission. This paper presents the results of a study of two gas seeps on the Central Yamal lake. The methane concentration in seep gas varies from 94.2 to 100%. Mean annual methane emission from each seep is estimated as 46.1 and 67.1 kgCH4 per year respectively. According to the analysis of the methane isotopic composition, it is of biogenic origin. Studied gas seeps are obviously direct channels of methane emission from permafrost to the atmosphere. © Published under licence by IOP Publishing Ltd.

Authors
Kazantsev V.S.1 , Krivenok L.A.1 , Dvornikov Y.A. 2
Publisher
Institute of Physics Publishing
Number of issue
1
Language
English
Status
Published
Number
012022
Volume
606
Year
2020
Organizations
  • 1 A M Obukhov Institute of Atmospheric Physics, Ras, Pyzhevsky per. 3, Moscow, 119017, Russian Federation
  • 2 Agrarian-Technological Institute, Peoples' Friendship University of Russia, Miklukho-Maklaya str., 6., Moscow, 117198, Russian Federation
Keywords
Atmospheric chemistry; Budget control; Greenhouse gases; Lakes; Methane; Permafrost; Arctic lakes; Atmospheric methanes; Biogenic origins; Direct channel; Isotopic composition; Methane concentrations; Methane emissions; Western siberia; Climate change
Date of creation
20.04.2021
Date of change
20.04.2021
Short link
https://repository.rudn.ru/en/records/article/record/71714/
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