Atmospheric CO 2 and CH 4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea
Observations of the atmospheric sources and sinks of carbon dioxide (CO 2 ) and methane (CH 4 ) in the pan-Arctic domain are extremely scarce, limiting our knowledge of carbon turnover in this climatically sensitive environment and the fate of the enormous carbon reservoirs conserved in the permafro...
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MDPI AG
2022
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Online Access: | https://doi.org/10.3390/atmos13091402 https://doaj.org/article/1f42b331d2e74c5aaff38e4d3cd93a76 |
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ftdoajarticles:oai:doaj.org/article:1f42b331d2e74c5aaff38e4d3cd93a76 2023-05-15T14:51:13+02:00 Atmospheric CO 2 and CH 4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea Alexey Panov Anatoly Prokushkin Igor Semiletov Karl Kübler Mikhail Korets Ilya Putilin Anastasiya Urban Mikhail Bondar Martin Heimann 2022-08-01T00:00:00Z https://doi.org/10.3390/atmos13091402 https://doaj.org/article/1f42b331d2e74c5aaff38e4d3cd93a76 EN eng MDPI AG https://www.mdpi.com/2073-4433/13/9/1402 https://doaj.org/toc/2073-4433 doi:10.3390/atmos13091402 2073-4433 https://doaj.org/article/1f42b331d2e74c5aaff38e4d3cd93a76 Atmosphere, Vol 13, Iss 1402, p 1402 (2022) climate Arctic Siberia atmospheric composition carbon dioxide methane Meteorology. Climatology QC851-999 article 2022 ftdoajarticles https://doi.org/10.3390/atmos13091402 2022-12-31T00:36:12Z Observations of the atmospheric sources and sinks of carbon dioxide (CO 2 ) and methane (CH 4 ) in the pan-Arctic domain are extremely scarce, limiting our knowledge of carbon turnover in this climatically sensitive environment and the fate of the enormous carbon reservoirs conserved in the permafrost. Especially critical are the gaps in the high latitudes of Siberia, covered by the vast permafrost underlain tundra, where only several atmospheric monitoring sites are operational. This paper presents the first two years (September 2018–January 2021) of accurate continuous observations of atmospheric CO 2 and CH 4 dry mole fractions at the recently deployed tower-based measurement station “DIAMIS” (73.5068° N, 80.5198° E) located on the southwestern coast of the Taimyr Peninsula, Siberia, at the Gulf of the Yenisei River that opens to the Kara Sea (Arctic Ocean). In this paper, we summarized the scientific rationale of the site, examined the seasonal footprint of the station with an analysis of terrestrial vegetation and maritime sector contributing to the captured atmospheric signal, and illustrated temporal patterns of CO 2 and CH 4 for the daytime mixed atmospheric layer over the continent–sea interface. Along with the temporal variations reflecting a signal caused pan-Arctic and not very much influenced by the local processes, we analyzed the spatiotemporal distribution of the synoptic anomalies representing the atmospheric signatures of regional sources and sinks of CO 2 and CH 4 for the studied high-arctic Siberian domain of ~625 thousand km 2 , with nearly equal capturing the land surface (54%) and the ocean (46%) throughout the year. Both for CO 2 and CH 4 , we have observed a sea–continent declining trend, presuming a larger depletion of trace gases in the maritime air masses compared to the continental domain. So far, over the Kara Sea, we have not detected any prominent signals of CH 4 that might have indicated processes of subsea permafrost degradation and occurrence of cold seeps–still mainly observed ... Article in Journal/Newspaper Arctic Arctic Ocean Kara Sea permafrost Taimyr Tundra Siberia Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Kara Sea Yenisei River ENVELOPE(84.738,84.738,69.718,69.718) Atmosphere 13 9 1402 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate Arctic Siberia atmospheric composition carbon dioxide methane Meteorology. Climatology QC851-999 |
spellingShingle |
climate Arctic Siberia atmospheric composition carbon dioxide methane Meteorology. Climatology QC851-999 Alexey Panov Anatoly Prokushkin Igor Semiletov Karl Kübler Mikhail Korets Ilya Putilin Anastasiya Urban Mikhail Bondar Martin Heimann Atmospheric CO 2 and CH 4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea |
topic_facet |
climate Arctic Siberia atmospheric composition carbon dioxide methane Meteorology. Climatology QC851-999 |
description |
Observations of the atmospheric sources and sinks of carbon dioxide (CO 2 ) and methane (CH 4 ) in the pan-Arctic domain are extremely scarce, limiting our knowledge of carbon turnover in this climatically sensitive environment and the fate of the enormous carbon reservoirs conserved in the permafrost. Especially critical are the gaps in the high latitudes of Siberia, covered by the vast permafrost underlain tundra, where only several atmospheric monitoring sites are operational. This paper presents the first two years (September 2018–January 2021) of accurate continuous observations of atmospheric CO 2 and CH 4 dry mole fractions at the recently deployed tower-based measurement station “DIAMIS” (73.5068° N, 80.5198° E) located on the southwestern coast of the Taimyr Peninsula, Siberia, at the Gulf of the Yenisei River that opens to the Kara Sea (Arctic Ocean). In this paper, we summarized the scientific rationale of the site, examined the seasonal footprint of the station with an analysis of terrestrial vegetation and maritime sector contributing to the captured atmospheric signal, and illustrated temporal patterns of CO 2 and CH 4 for the daytime mixed atmospheric layer over the continent–sea interface. Along with the temporal variations reflecting a signal caused pan-Arctic and not very much influenced by the local processes, we analyzed the spatiotemporal distribution of the synoptic anomalies representing the atmospheric signatures of regional sources and sinks of CO 2 and CH 4 for the studied high-arctic Siberian domain of ~625 thousand km 2 , with nearly equal capturing the land surface (54%) and the ocean (46%) throughout the year. Both for CO 2 and CH 4 , we have observed a sea–continent declining trend, presuming a larger depletion of trace gases in the maritime air masses compared to the continental domain. So far, over the Kara Sea, we have not detected any prominent signals of CH 4 that might have indicated processes of subsea permafrost degradation and occurrence of cold seeps–still mainly observed ... |
format |
Article in Journal/Newspaper |
author |
Alexey Panov Anatoly Prokushkin Igor Semiletov Karl Kübler Mikhail Korets Ilya Putilin Anastasiya Urban Mikhail Bondar Martin Heimann |
author_facet |
Alexey Panov Anatoly Prokushkin Igor Semiletov Karl Kübler Mikhail Korets Ilya Putilin Anastasiya Urban Mikhail Bondar Martin Heimann |
author_sort |
Alexey Panov |
title |
Atmospheric CO 2 and CH 4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea |
title_short |
Atmospheric CO 2 and CH 4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea |
title_full |
Atmospheric CO 2 and CH 4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea |
title_fullStr |
Atmospheric CO 2 and CH 4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea |
title_full_unstemmed |
Atmospheric CO 2 and CH 4 Fluctuations over the Continent-Sea Interface in the Yenisei River Sector of the Kara Sea |
title_sort |
atmospheric co 2 and ch 4 fluctuations over the continent-sea interface in the yenisei river sector of the kara sea |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/atmos13091402 https://doaj.org/article/1f42b331d2e74c5aaff38e4d3cd93a76 |
long_lat |
ENVELOPE(84.738,84.738,69.718,69.718) |
geographic |
Arctic Arctic Ocean Kara Sea Yenisei River |
geographic_facet |
Arctic Arctic Ocean Kara Sea Yenisei River |
genre |
Arctic Arctic Ocean Kara Sea permafrost Taimyr Tundra Siberia |
genre_facet |
Arctic Arctic Ocean Kara Sea permafrost Taimyr Tundra Siberia |
op_source |
Atmosphere, Vol 13, Iss 1402, p 1402 (2022) |
op_relation |
https://www.mdpi.com/2073-4433/13/9/1402 https://doaj.org/toc/2073-4433 doi:10.3390/atmos13091402 2073-4433 https://doaj.org/article/1f42b331d2e74c5aaff38e4d3cd93a76 |
op_doi |
https://doi.org/10.3390/atmos13091402 |
container_title |
Atmosphere |
container_volume |
13 |
container_issue |
9 |
container_start_page |
1402 |
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1766322278452166656 |