Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges
Methane (CH4) and nitrous oxide (N2O) 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 Siberi...
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Copernicus Publications
2020
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00051339 2023-05-15T16:36:40+02:00 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 2020-04 electronic https://doi.org/10.5194/tc-14-1311-2020 https://noa.gwlb.de/receive/cop_mods_00051339 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00050995/tc-14-1311-2020.pdf https://tc.copernicus.org/articles/14/1311/2020/tc-14-1311-2020.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-14-1311-2020 https://noa.gwlb.de/receive/cop_mods_00051339 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00050995/tc-14-1311-2020.pdf https://tc.copernicus.org/articles/14/1311/2020/tc-14-1311-2020.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2020 ftnonlinearchiv https://doi.org/10.5194/tc-14-1311-2020 2022-02-08T22:36:26Z Methane (CH4) and nitrous oxide (N2O) 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 CH4 and N2O 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 Niedersächsisches Online-Archiv NOA The Cryosphere 14 4 1311 1324 |
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article Verlagsveröffentlichung Yang, Ji-Woong Ahn, Jinho Iwahana, Go Han, Sangyoung Kim, Kyungmin Fedorov, Alexander Brief Communication: The reliability of gas extraction techniques for analysing CH4 and N2O compositions in gas trapped in permafrost ice wedges |
topic_facet |
article Verlagsveröffentlichung |
description |
Methane (CH4) and nitrous oxide (N2O) 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 CH4 and N2O 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. |
format |
Article in Journal/Newspaper |
author |
Yang, Ji-Woong Ahn, Jinho Iwahana, Go Han, Sangyoung Kim, Kyungmin Fedorov, Alexander |
author_facet |
Yang, Ji-Woong Ahn, Jinho Iwahana, Go Han, Sangyoung Kim, Kyungmin Fedorov, Alexander |
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 |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/tc-14-1311-2020 https://noa.gwlb.de/receive/cop_mods_00051339 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00050995/tc-14-1311-2020.pdf https://tc.copernicus.org/articles/14/1311/2020/tc-14-1311-2020.pdf |
genre |
Ice permafrost The Cryosphere wedge* Alaska Siberia |
genre_facet |
Ice permafrost The Cryosphere wedge* Alaska Siberia |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-14-1311-2020 https://noa.gwlb.de/receive/cop_mods_00051339 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00050995/tc-14-1311-2020.pdf https://tc.copernicus.org/articles/14/1311/2020/tc-14-1311-2020.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
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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1766027005766139904 |