N2O dynamics in the western Arctic Ocean during the summer of 2017
Abstract The western Arctic Ocean (WAO) has experienced increased heat transport into the region, sea-ice reduction, and changes to the WAO nitrous oxide (N2O) cycles from greenhouse gases. We investigated WAO N2O dynamics through an intensive and precise N2O survey during the open-water season of s...
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ftdoajarticles:oai:doaj.org/article:6eeb2c55c09e412fb88519f465343cb7 2023-05-15T14:48:15+02:00 N2O dynamics in the western Arctic Ocean during the summer of 2017 Jang-Mu Heo Seong-Su Kim Sung-Ho Kang Eun Jin Yang Ki-Tae Park Jinyoung Jung Kyoung-Ho Cho Ju-Hyoung Kim Alison M. Macdonald Joo-Eun Yoon Hyo-Ryeon Kim Sang-Min Eom Jae-Hyun Lim Il-Nam Kim 2021-06-01T00:00:00Z https://doi.org/10.1038/s41598-021-92009-1 https://doaj.org/article/6eeb2c55c09e412fb88519f465343cb7 EN eng Nature Portfolio https://doi.org/10.1038/s41598-021-92009-1 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-92009-1 2045-2322 https://doaj.org/article/6eeb2c55c09e412fb88519f465343cb7 Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021) Medicine R Science Q article 2021 ftdoajarticles https://doi.org/10.1038/s41598-021-92009-1 2022-12-31T07:45:26Z Abstract The western Arctic Ocean (WAO) has experienced increased heat transport into the region, sea-ice reduction, and changes to the WAO nitrous oxide (N2O) cycles from greenhouse gases. We investigated WAO N2O dynamics through an intensive and precise N2O survey during the open-water season of summer 2017. The effects of physical processes (i.e., solubility and advection) were dominant in both the surface (0–50 m) and deep layers (200–2200 m) of the northern Chukchi Sea with an under-saturation of N2O. By contrast, both the surface layer (0–50 m) of the southern Chukchi Sea and the intermediate (50–200 m) layer of the northern Chukchi Sea were significantly influenced by biogeochemically derived N2O production (i.e., through nitrification), with N2O over-saturation. During summer 2017, the southern region acted as a source of atmospheric N2O (mean: + 2.3 ± 2.7 μmol N2O m−2 day−1), whereas the northern region acted as a sink (mean − 1.3 ± 1.5 μmol N2O m−2 day−1). If Arctic environmental changes continue to accelerate and consequently drive the productivity of the Arctic Ocean, the WAO may become a N2O “hot spot”, and therefore, a key region requiring continued observations to both understand N2O dynamics and possibly predict their future changes. Article in Journal/Newspaper Arctic Arctic Ocean Chukchi Chukchi Sea Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Chukchi Sea Scientific Reports 11 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Jang-Mu Heo Seong-Su Kim Sung-Ho Kang Eun Jin Yang Ki-Tae Park Jinyoung Jung Kyoung-Ho Cho Ju-Hyoung Kim Alison M. Macdonald Joo-Eun Yoon Hyo-Ryeon Kim Sang-Min Eom Jae-Hyun Lim Il-Nam Kim N2O dynamics in the western Arctic Ocean during the summer of 2017 |
topic_facet |
Medicine R Science Q |
description |
Abstract The western Arctic Ocean (WAO) has experienced increased heat transport into the region, sea-ice reduction, and changes to the WAO nitrous oxide (N2O) cycles from greenhouse gases. We investigated WAO N2O dynamics through an intensive and precise N2O survey during the open-water season of summer 2017. The effects of physical processes (i.e., solubility and advection) were dominant in both the surface (0–50 m) and deep layers (200–2200 m) of the northern Chukchi Sea with an under-saturation of N2O. By contrast, both the surface layer (0–50 m) of the southern Chukchi Sea and the intermediate (50–200 m) layer of the northern Chukchi Sea were significantly influenced by biogeochemically derived N2O production (i.e., through nitrification), with N2O over-saturation. During summer 2017, the southern region acted as a source of atmospheric N2O (mean: + 2.3 ± 2.7 μmol N2O m−2 day−1), whereas the northern region acted as a sink (mean − 1.3 ± 1.5 μmol N2O m−2 day−1). If Arctic environmental changes continue to accelerate and consequently drive the productivity of the Arctic Ocean, the WAO may become a N2O “hot spot”, and therefore, a key region requiring continued observations to both understand N2O dynamics and possibly predict their future changes. |
format |
Article in Journal/Newspaper |
author |
Jang-Mu Heo Seong-Su Kim Sung-Ho Kang Eun Jin Yang Ki-Tae Park Jinyoung Jung Kyoung-Ho Cho Ju-Hyoung Kim Alison M. Macdonald Joo-Eun Yoon Hyo-Ryeon Kim Sang-Min Eom Jae-Hyun Lim Il-Nam Kim |
author_facet |
Jang-Mu Heo Seong-Su Kim Sung-Ho Kang Eun Jin Yang Ki-Tae Park Jinyoung Jung Kyoung-Ho Cho Ju-Hyoung Kim Alison M. Macdonald Joo-Eun Yoon Hyo-Ryeon Kim Sang-Min Eom Jae-Hyun Lim Il-Nam Kim |
author_sort |
Jang-Mu Heo |
title |
N2O dynamics in the western Arctic Ocean during the summer of 2017 |
title_short |
N2O dynamics in the western Arctic Ocean during the summer of 2017 |
title_full |
N2O dynamics in the western Arctic Ocean during the summer of 2017 |
title_fullStr |
N2O dynamics in the western Arctic Ocean during the summer of 2017 |
title_full_unstemmed |
N2O dynamics in the western Arctic Ocean during the summer of 2017 |
title_sort |
n2o dynamics in the western arctic ocean during the summer of 2017 |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doi.org/10.1038/s41598-021-92009-1 https://doaj.org/article/6eeb2c55c09e412fb88519f465343cb7 |
geographic |
Arctic Arctic Ocean Chukchi Sea |
geographic_facet |
Arctic Arctic Ocean Chukchi Sea |
genre |
Arctic Arctic Ocean Chukchi Chukchi Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Chukchi Chukchi Sea Sea ice |
op_source |
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021) |
op_relation |
https://doi.org/10.1038/s41598-021-92009-1 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-92009-1 2045-2322 https://doaj.org/article/6eeb2c55c09e412fb88519f465343cb7 |
op_doi |
https://doi.org/10.1038/s41598-021-92009-1 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
_version_ |
1766319341162201088 |