Evidence of gas emissions from permafrost in the russian arctic

Evgeny Chuvilin, Boris Bukhanov, Valentina Ekimova, Dinara Davletshina, Natalia Sokolova

Research output: Contribution to journalReview articlepeer-review

10 Citations (Scopus)

Abstract

The active emission of gas (mainly methane) from terrestrial and subsea permafrost in the Russian Arctic has been confirmed by ample evidence. In this paper, a generalization and some systematization of gas manifestations recorded in the Russian Arctic is carried out. The published data on most typical gas emission cases have been summarized in a table and illustrated by a map. The tabulated data include location, signatures, and possible sources of each gas show, with respective references. All events of onshore and shelf gas release are divided into natural and man-caused. and the natural ones are further classified as venting from lakes or explosive emissions in dryland conditions that produce craters on the surface. Among natural gas shows on land, special attention is paid to the emission of natural gas from Arctic lakes, as well as gas emissions with craters formation. In addition, a description of the observed man-caused gas manifestations associated with the drilling of geotechnical and production wells in the Arctic region is given. The reported evidence demonstrates the effect of permafrost degradation on gas release, especially in oil and gas fields.

Original languageEnglish
Article number383
Pages (from-to)1-23
Number of pages23
JournalGeosciences (Switzerland)
Volume10
Issue number10
DOIs
Publication statusPublished - Oct 2020

Keywords

  • Arctic lakes
  • Arctic shelf
  • Crater
  • Deep gas
  • Drilling
  • Gas hydrates
  • Gas seep
  • Gas venting
  • Intrapermafrost gas
  • Methane emission
  • Permafrost
  • Permafrost degradation
  • Russian Arctic

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