Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges
International audience Methane (CH 4) and nitrous oxide (N 2 O) compositions in ground ice may provide information on their production mechanisms in permafrost. However, existing gas extraction methods have not been well tested. We tested conventional wet and dry gas extraction methods using ice wed...
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Online Access: | https://hal.science/hal-02971262 https://hal.science/hal-02971262/document https://hal.science/hal-02971262/file/tc-14-1311-2020.pdf https://doi.org/10.5194/tc-14-1311-2020 |
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ftceafr:oai:HAL:hal-02971262v1 2024-06-09T07:46:37+00:00 Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges Yang, Ji-Woong Ahn, Jinho Iwahana, Go Han, Sangyoung Kim, Kyungmin Fedorov, Alexander, A. School of Earth and Environmental Sciences Seoul (SEES) Seoul National University Seoul (SNU) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) International Arctic Research Center (IARC) University of Alaska Fairbanks (UAF) Tohoku University Sendai North-Eastern Federal University Melnikov Permafrost Institute Siberian Branch of the Russian Academy of Sciences (SB RAS) 2020 https://hal.science/hal-02971262 https://hal.science/hal-02971262/document https://hal.science/hal-02971262/file/tc-14-1311-2020.pdf https://doi.org/10.5194/tc-14-1311-2020 en eng HAL CCSD Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-14-1311-2020 hal-02971262 https://hal.science/hal-02971262 https://hal.science/hal-02971262/document https://hal.science/hal-02971262/file/tc-14-1311-2020.pdf doi:10.5194/tc-14-1311-2020 info:eu-repo/semantics/OpenAccess ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.science/hal-02971262 The Cryosphere, 2020, 14 (4), pp.1311-1324. ⟨10.5194/tc-14-1311-2020⟩ [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2020 ftceafr https://doi.org/10.5194/tc-14-1311-2020 2024-05-16T14:30:04Z International audience Methane (CH 4) and nitrous oxide (N 2 O) compositions in ground ice may provide information on their production mechanisms in permafrost. However, existing gas extraction methods have not been well tested. We tested conventional wet and dry gas extraction methods using ice wedges from Alaska and Siberia, finding that both methods can extract gas from the easily extractable parts of the ice (e.g. gas bubbles) and yield similar results for CH 4 and N 2 O mixing ratios. We also found insignificant effects of microbial activity during wet extraction. However, both techniques were unable to fully extract gas from the ground ice, presumably because gas molecules adsorbed onto or enclosed in soil aggregates are not easily extractable. Estimation of gas production in a subfreezing environment of permafrost should consider such incomplete gas extraction. Article in Journal/Newspaper Ice permafrost The Cryosphere wedge* Alaska Siberia HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) The Cryosphere 14 4 1311 1324 |
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Open Polar |
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HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
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ftceafr |
language |
English |
topic |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Yang, Ji-Woong Ahn, Jinho Iwahana, Go Han, Sangyoung Kim, Kyungmin Fedorov, Alexander, A. Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges |
topic_facet |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Methane (CH 4) and nitrous oxide (N 2 O) compositions in ground ice may provide information on their production mechanisms in permafrost. However, existing gas extraction methods have not been well tested. We tested conventional wet and dry gas extraction methods using ice wedges from Alaska and Siberia, finding that both methods can extract gas from the easily extractable parts of the ice (e.g. gas bubbles) and yield similar results for CH 4 and N 2 O mixing ratios. We also found insignificant effects of microbial activity during wet extraction. However, both techniques were unable to fully extract gas from the ground ice, presumably because gas molecules adsorbed onto or enclosed in soil aggregates are not easily extractable. Estimation of gas production in a subfreezing environment of permafrost should consider such incomplete gas extraction. |
author2 |
School of Earth and Environmental Sciences Seoul (SEES) Seoul National University Seoul (SNU) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) International Arctic Research Center (IARC) University of Alaska Fairbanks (UAF) Tohoku University Sendai North-Eastern Federal University Melnikov Permafrost Institute Siberian Branch of the Russian Academy of Sciences (SB RAS) |
format |
Article in Journal/Newspaper |
author |
Yang, Ji-Woong Ahn, Jinho Iwahana, Go Han, Sangyoung Kim, Kyungmin Fedorov, Alexander, A. |
author_facet |
Yang, Ji-Woong Ahn, Jinho Iwahana, Go Han, Sangyoung Kim, Kyungmin Fedorov, Alexander, A. |
author_sort |
Yang, Ji-Woong |
title |
Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_short |
Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_full |
Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_fullStr |
Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_full_unstemmed |
Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_sort |
brief communication: the reliability of gas extraction techniques for analysing ch4 and n2o compositions in gas trapped in permafrost ice wedges |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02971262 https://hal.science/hal-02971262/document https://hal.science/hal-02971262/file/tc-14-1311-2020.pdf https://doi.org/10.5194/tc-14-1311-2020 |
genre |
Ice permafrost The Cryosphere wedge* Alaska Siberia |
genre_facet |
Ice permafrost The Cryosphere wedge* Alaska Siberia |
op_source |
ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.science/hal-02971262 The Cryosphere, 2020, 14 (4), pp.1311-1324. ⟨10.5194/tc-14-1311-2020⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-14-1311-2020 hal-02971262 https://hal.science/hal-02971262 https://hal.science/hal-02971262/document https://hal.science/hal-02971262/file/tc-14-1311-2020.pdf doi:10.5194/tc-14-1311-2020 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/tc-14-1311-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
4 |
container_start_page |
1311 |
op_container_end_page |
1324 |
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1801376589073612800 |