Comparison of different gas extraction techniques to analyze 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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ftzenodo:oai:zenodo.org:3701243 2023-06-06T11:51:00+02:00 Comparison of different gas extraction techniques to analyze CH4 and N2O compositions in gas trapped in permafrost ice wedges Yang, Ji-Woong Ahn, Jinho Iwahana, Go Han, Sangyoung Kim, Kyungmin Fedorov, Alexander 2020-03-09 https://zenodo.org/record/3701243 https://doi.org/10.5281/zenodo.3701243 eng eng doi:10.5281/zenodo.3701242 https://zenodo.org/record/3701243 https://doi.org/10.5281/zenodo.3701243 oai:zenodo.org:3701243 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode The Cryosphere Ground ice Permafrost Methane Nitrous Oxide info:eu-repo/semantics/other dataset 2020 ftzenodo https://doi.org/10.5281/zenodo.370124310.5281/zenodo.3701242 2023-04-13T23:59:29Z 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 subfreezing environment of permafrost should consider such incomplete gas extraction. This project was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) (NRF-2018R1A2B3003256 and NRF-2018R1A5A1024958) and the NASA ABoVE (Arctic Boreal and Vulnerability Experiment; grant no. NNX17AC57A). Dataset Arctic Ice permafrost The Cryosphere wedge* Alaska Siberia Zenodo Arctic |
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Open Polar |
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Zenodo |
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ftzenodo |
language |
English |
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Ground ice Permafrost Methane Nitrous Oxide |
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Ground ice Permafrost Methane Nitrous Oxide Yang, Ji-Woong Ahn, Jinho Iwahana, Go Han, Sangyoung Kim, Kyungmin Fedorov, Alexander Comparison of different gas extraction techniques to analyze CH4 and N2O compositions in gas trapped in permafrost ice wedges |
topic_facet |
Ground ice Permafrost Methane Nitrous Oxide |
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 subfreezing environment of permafrost should consider such incomplete gas extraction. This project was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) (NRF-2018R1A2B3003256 and NRF-2018R1A5A1024958) and the NASA ABoVE (Arctic Boreal and Vulnerability Experiment; grant no. NNX17AC57A). |
format |
Dataset |
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 |
Comparison of different gas extraction techniques to analyze CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_short |
Comparison of different gas extraction techniques to analyze CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_full |
Comparison of different gas extraction techniques to analyze CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_fullStr |
Comparison of different gas extraction techniques to analyze CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_full_unstemmed |
Comparison of different gas extraction techniques to analyze CH4 and N2O compositions in gas trapped in permafrost ice wedges |
title_sort |
comparison of different gas extraction techniques to analyze ch4 and n2o compositions in gas trapped in permafrost ice wedges |
publishDate |
2020 |
url |
https://zenodo.org/record/3701243 https://doi.org/10.5281/zenodo.3701243 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost The Cryosphere wedge* Alaska Siberia |
genre_facet |
Arctic Ice permafrost The Cryosphere wedge* Alaska Siberia |
op_source |
The Cryosphere |
op_relation |
doi:10.5281/zenodo.3701242 https://zenodo.org/record/3701243 https://doi.org/10.5281/zenodo.3701243 oai:zenodo.org:3701243 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.370124310.5281/zenodo.3701242 |
_version_ |
1767956767730302976 |