DataSheet_1_Summer net community production in the northern Chukchi Sea: Comparison between 2017 and 2020.pdf
The Arctic Ocean environment is drastically changing because of global warming. Although warming-induced processes, such as the decrease in sea-ice extent and freshening of the surface layer, have the potential to alter primary production, the changes that will likely occur in their production and t...
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ftfrontimediafig:oai:figshare.com:article/21600600 2024-09-15T17:54:13+00:00 DataSheet_1_Summer net community production in the northern Chukchi Sea: Comparison between 2017 and 2020.pdf Soyeon Kwon Inhee Lee Keyhong Park Kyoung-Ho Cho Jinyoung Jung Taewook Park Youngju Lee Chanhyung Jeon Seongbong Seo Doshik Hahm 2022-11-22T04:46:21Z https://doi.org/10.3389/fmars.2022.1050791.s001 https://figshare.com/articles/dataset/DataSheet_1_Summer_net_community_production_in_the_northern_Chukchi_Sea_Comparison_between_2017_and_2020_pdf/21600600 unknown doi:10.3389/fmars.2022.1050791.s001 https://figshare.com/articles/dataset/DataSheet_1_Summer_net_community_production_in_the_northern_Chukchi_Sea_Comparison_between_2017_and_2020_pdf/21600600 CC BY 4.0 Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering net community production Chukchi Sea O2/Ar nitrate flux biological pump Dataset 2022 ftfrontimediafig https://doi.org/10.3389/fmars.2022.1050791.s001 2024-08-19T06:19:52Z The Arctic Ocean environment is drastically changing because of global warming. Although warming-induced processes, such as the decrease in sea-ice extent and freshening of the surface layer, have the potential to alter primary production, the changes that will likely occur in their production and their mechanisms are still poorly understood. To assess the potential changes in net community production, which is a measure of biological carbon pump, in response to climate change, we observed the O 2 /Ar at the surface of the northern Chukchi Sea in the summers of 2017 and 2020. The net community production (NCP) estimates that we derived from O 2 /Ar measurements were largely in the range of 1 – 11 mmol O 2 m -2 d -1 in the northern Chukchi and Beaufort Seas, close to the lower bounds of the values in the global oceans. The average NCP of 1.5 ± 1.7 mmol O 2 m -2 d -1 in 2020 was substantially lower than 7.1 ± 7.4 mmol O 2 m -2 d -1 in 2017, with the most pronounced decrease occurring in the ice-free region of the northern Chukchi Sea; the NCP of the ice-free region in 2020 was only 12% of that in 2017. The decrease in NCP in 2020 was accompanied by a lower salinity of > 2, which resulted in shallower mixed layer depths and stronger stratification. We speculated that the anomalously low pressure near the east Russian coast and the lack of strong winds contributed to the strong stratification in 2020. With a continuing decrease in the extent of sea ice, the northern Chukchi Sea will likely experience earlier phytoplankton blooms and nitrate exhaustion. Unless winds blow strong enough to break the stratification, the biological pump in late summer is likely to remain weak. Dataset Arctic Ocean Chukchi Chukchi Sea Climate change Global warming Phytoplankton Sea ice Frontiers: Figshare |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering net community production Chukchi Sea O2/Ar nitrate flux biological pump |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering net community production Chukchi Sea O2/Ar nitrate flux biological pump Soyeon Kwon Inhee Lee Keyhong Park Kyoung-Ho Cho Jinyoung Jung Taewook Park Youngju Lee Chanhyung Jeon Seongbong Seo Doshik Hahm DataSheet_1_Summer net community production in the northern Chukchi Sea: Comparison between 2017 and 2020.pdf |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering net community production Chukchi Sea O2/Ar nitrate flux biological pump |
description |
The Arctic Ocean environment is drastically changing because of global warming. Although warming-induced processes, such as the decrease in sea-ice extent and freshening of the surface layer, have the potential to alter primary production, the changes that will likely occur in their production and their mechanisms are still poorly understood. To assess the potential changes in net community production, which is a measure of biological carbon pump, in response to climate change, we observed the O 2 /Ar at the surface of the northern Chukchi Sea in the summers of 2017 and 2020. The net community production (NCP) estimates that we derived from O 2 /Ar measurements were largely in the range of 1 – 11 mmol O 2 m -2 d -1 in the northern Chukchi and Beaufort Seas, close to the lower bounds of the values in the global oceans. The average NCP of 1.5 ± 1.7 mmol O 2 m -2 d -1 in 2020 was substantially lower than 7.1 ± 7.4 mmol O 2 m -2 d -1 in 2017, with the most pronounced decrease occurring in the ice-free region of the northern Chukchi Sea; the NCP of the ice-free region in 2020 was only 12% of that in 2017. The decrease in NCP in 2020 was accompanied by a lower salinity of > 2, which resulted in shallower mixed layer depths and stronger stratification. We speculated that the anomalously low pressure near the east Russian coast and the lack of strong winds contributed to the strong stratification in 2020. With a continuing decrease in the extent of sea ice, the northern Chukchi Sea will likely experience earlier phytoplankton blooms and nitrate exhaustion. Unless winds blow strong enough to break the stratification, the biological pump in late summer is likely to remain weak. |
format |
Dataset |
author |
Soyeon Kwon Inhee Lee Keyhong Park Kyoung-Ho Cho Jinyoung Jung Taewook Park Youngju Lee Chanhyung Jeon Seongbong Seo Doshik Hahm |
author_facet |
Soyeon Kwon Inhee Lee Keyhong Park Kyoung-Ho Cho Jinyoung Jung Taewook Park Youngju Lee Chanhyung Jeon Seongbong Seo Doshik Hahm |
author_sort |
Soyeon Kwon |
title |
DataSheet_1_Summer net community production in the northern Chukchi Sea: Comparison between 2017 and 2020.pdf |
title_short |
DataSheet_1_Summer net community production in the northern Chukchi Sea: Comparison between 2017 and 2020.pdf |
title_full |
DataSheet_1_Summer net community production in the northern Chukchi Sea: Comparison between 2017 and 2020.pdf |
title_fullStr |
DataSheet_1_Summer net community production in the northern Chukchi Sea: Comparison between 2017 and 2020.pdf |
title_full_unstemmed |
DataSheet_1_Summer net community production in the northern Chukchi Sea: Comparison between 2017 and 2020.pdf |
title_sort |
datasheet_1_summer net community production in the northern chukchi sea: comparison between 2017 and 2020.pdf |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.1050791.s001 https://figshare.com/articles/dataset/DataSheet_1_Summer_net_community_production_in_the_northern_Chukchi_Sea_Comparison_between_2017_and_2020_pdf/21600600 |
genre |
Arctic Ocean Chukchi Chukchi Sea Climate change Global warming Phytoplankton Sea ice |
genre_facet |
Arctic Ocean Chukchi Chukchi Sea Climate change Global warming Phytoplankton Sea ice |
op_relation |
doi:10.3389/fmars.2022.1050791.s001 https://figshare.com/articles/dataset/DataSheet_1_Summer_net_community_production_in_the_northern_Chukchi_Sea_Comparison_between_2017_and_2020_pdf/21600600 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2022.1050791.s001 |
_version_ |
1810430453025341440 |