Changes in atmospheric oxidants over Arctic Ocean atmosphere: evidence of oxygen isotope anomaly in nitrate aerosols
Abstract Oxygen isotope anomaly of nitrate aerosol (∆17O-NO3 −) contributes to understanding the atmospheric nitrogen chemistry in the polar oceans. Here, ∆17O-NO3 − of the aerosol samples was analyzed based on a cruise from East Asia to the Arctic Ocean to explore the nitrate formation mechanisms....
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ftdoajarticles:oai:doaj.org/article:0d7ac105309646e4a5773a6b6b37ec45 2023-10-01T03:53:16+02:00 Changes in atmospheric oxidants over Arctic Ocean atmosphere: evidence of oxygen isotope anomaly in nitrate aerosols Yanlin Zhang Zhuyu Zhao Fang Cao Wenhuai Song Yuchi Lin Meiyi Fan Haoran Yu Hanyu Li Yihang Hong Meng Gao 2023-08-01T00:00:00Z https://doi.org/10.1038/s41612-023-00447-7 https://doaj.org/article/0d7ac105309646e4a5773a6b6b37ec45 EN eng Nature Portfolio https://doi.org/10.1038/s41612-023-00447-7 https://doaj.org/toc/2397-3722 doi:10.1038/s41612-023-00447-7 2397-3722 https://doaj.org/article/0d7ac105309646e4a5773a6b6b37ec45 npj Climate and Atmospheric Science, Vol 6, Iss 1, Pp 1-9 (2023) Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2023 ftdoajarticles https://doi.org/10.1038/s41612-023-00447-7 2023-09-03T00:54:50Z Abstract Oxygen isotope anomaly of nitrate aerosol (∆17O-NO3 −) contributes to understanding the atmospheric nitrogen chemistry in the polar oceans. Here, ∆17O-NO3 − of the aerosol samples was analyzed based on a cruise from East Asia to the Arctic Ocean to explore the nitrate formation mechanisms. ∆17O-NO3 − decreased with the increase of latitude, especially when after entering the Arctic Circle. ∆17O-NO3 − (e.g., 11.5‰–21.2‰) was extremely low while crossing the sea ice-covered Arctic Ocean. This is most likely influenced by the combined enhancement of hydroxyl (OH) and peroxy (HO2 + RO2) radicals derived by sea ice under permanent sunlight period. In addition, the obvious increase in the ∆17O-NO3 − of return trip with shortened daytime indicated the advantage of nocturnal pathways (NO3 related) with the higher ∆17O endmembers. The mutation of ∆17O-NO3 − can reflect the change of NOx conversion pathways to nitrate, and it can be more sensitive to the change of radical chemistry related to atmospheric oxidation. Article in Journal/Newspaper Arctic Arctic Ocean Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean npj Climate and Atmospheric Science 6 1 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Yanlin Zhang Zhuyu Zhao Fang Cao Wenhuai Song Yuchi Lin Meiyi Fan Haoran Yu Hanyu Li Yihang Hong Meng Gao Changes in atmospheric oxidants over Arctic Ocean atmosphere: evidence of oxygen isotope anomaly in nitrate aerosols |
topic_facet |
Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Abstract Oxygen isotope anomaly of nitrate aerosol (∆17O-NO3 −) contributes to understanding the atmospheric nitrogen chemistry in the polar oceans. Here, ∆17O-NO3 − of the aerosol samples was analyzed based on a cruise from East Asia to the Arctic Ocean to explore the nitrate formation mechanisms. ∆17O-NO3 − decreased with the increase of latitude, especially when after entering the Arctic Circle. ∆17O-NO3 − (e.g., 11.5‰–21.2‰) was extremely low while crossing the sea ice-covered Arctic Ocean. This is most likely influenced by the combined enhancement of hydroxyl (OH) and peroxy (HO2 + RO2) radicals derived by sea ice under permanent sunlight period. In addition, the obvious increase in the ∆17O-NO3 − of return trip with shortened daytime indicated the advantage of nocturnal pathways (NO3 related) with the higher ∆17O endmembers. The mutation of ∆17O-NO3 − can reflect the change of NOx conversion pathways to nitrate, and it can be more sensitive to the change of radical chemistry related to atmospheric oxidation. |
format |
Article in Journal/Newspaper |
author |
Yanlin Zhang Zhuyu Zhao Fang Cao Wenhuai Song Yuchi Lin Meiyi Fan Haoran Yu Hanyu Li Yihang Hong Meng Gao |
author_facet |
Yanlin Zhang Zhuyu Zhao Fang Cao Wenhuai Song Yuchi Lin Meiyi Fan Haoran Yu Hanyu Li Yihang Hong Meng Gao |
author_sort |
Yanlin Zhang |
title |
Changes in atmospheric oxidants over Arctic Ocean atmosphere: evidence of oxygen isotope anomaly in nitrate aerosols |
title_short |
Changes in atmospheric oxidants over Arctic Ocean atmosphere: evidence of oxygen isotope anomaly in nitrate aerosols |
title_full |
Changes in atmospheric oxidants over Arctic Ocean atmosphere: evidence of oxygen isotope anomaly in nitrate aerosols |
title_fullStr |
Changes in atmospheric oxidants over Arctic Ocean atmosphere: evidence of oxygen isotope anomaly in nitrate aerosols |
title_full_unstemmed |
Changes in atmospheric oxidants over Arctic Ocean atmosphere: evidence of oxygen isotope anomaly in nitrate aerosols |
title_sort |
changes in atmospheric oxidants over arctic ocean atmosphere: evidence of oxygen isotope anomaly in nitrate aerosols |
publisher |
Nature Portfolio |
publishDate |
2023 |
url |
https://doi.org/10.1038/s41612-023-00447-7 https://doaj.org/article/0d7ac105309646e4a5773a6b6b37ec45 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_source |
npj Climate and Atmospheric Science, Vol 6, Iss 1, Pp 1-9 (2023) |
op_relation |
https://doi.org/10.1038/s41612-023-00447-7 https://doaj.org/toc/2397-3722 doi:10.1038/s41612-023-00447-7 2397-3722 https://doaj.org/article/0d7ac105309646e4a5773a6b6b37ec45 |
op_doi |
https://doi.org/10.1038/s41612-023-00447-7 |
container_title |
npj Climate and Atmospheric Science |
container_volume |
6 |
container_issue |
1 |
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1778519729044979712 |