A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System)
The tropospheric ozone depletion event (ODE), first observed at Barrow (now known as Utqiaġvik), Alaska, is a phenomenon that frequently occurs during the springtime in the Arctic. In this study, we performed a three-dimensional model study on ODEs occurring at Barrow and its surrounding areas betwe...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2023
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-23-3363-2023 https://doaj.org/article/a3302e1ae9e346e5a182578fe385d0d4 |
id |
ftdoajarticles:oai:doaj.org/article:a3302e1ae9e346e5a182578fe385d0d4 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:a3302e1ae9e346e5a182578fe385d0d4 2023-05-15T15:01:59+02:00 A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System) L. Cao S. Li Y. Gu Y. Luo 2023-03-01T00:00:00Z https://doi.org/10.5194/acp-23-3363-2023 https://doaj.org/article/a3302e1ae9e346e5a182578fe385d0d4 EN eng Copernicus Publications https://acp.copernicus.org/articles/23/3363/2023/acp-23-3363-2023.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-23-3363-2023 1680-7316 1680-7324 https://doaj.org/article/a3302e1ae9e346e5a182578fe385d0d4 Atmospheric Chemistry and Physics, Vol 23, Pp 3363-3382 (2023) Physics QC1-999 Chemistry QD1-999 article 2023 ftdoajarticles https://doi.org/10.5194/acp-23-3363-2023 2023-03-19T01:29:25Z The tropospheric ozone depletion event (ODE), first observed at Barrow (now known as Utqiaġvik), Alaska, is a phenomenon that frequently occurs during the springtime in the Arctic. In this study, we performed a three-dimensional model study on ODEs occurring at Barrow and its surrounding areas between 28 March and 6 April 2019 using a 3-D multi-scale air quality model, CMAQ (Community Multiscale Air Quality Modeling System). Several ODEs observed at Barrow were captured, and two of them were thoroughly analyzed using the process analysis method to estimate contributions of horizontal transport, vertical transport, dry deposition, and the overall chemical process to the variations in ozone and bromine species during ODEs. We found that the ODE occurring between 30 and 31 March 2019 (referred to as ODE1) was primarily caused by the horizontal transport of low-ozone air from the Beaufort Sea to Barrow. The formation of this low-ozone air over the sea was largely attributed to a release of sea-salt aerosols from the Bering Strait under strong wind conditions, stemming from a cyclone generated on the Chukotka Peninsula. It was also discovered that the surface ozone dropped to less than 5 ppb over the Beaufort Sea, and the overall chemical process contributed up to 10 ppb to the ozone loss. Moreover, BrO over the sea reached a maximum of approximately 80 ppt. This low-ozone air over the sea was then horizontally transported to Barrow, leading to the occurrence of ODE1. Regarding another ODE on 2 April (ODE2), we found that its occurrence was also dominated by the horizontal transport from the sea, but under the control of an anticyclone. The termination of this ODE was mainly attributed to the replenishment of ozone-rich air from the free troposphere by a strong vertical transport. Article in Journal/Newspaper Arctic Barrow Beaufort Sea Bering Strait Chukotka Chukotka Peninsula Alaska Directory of Open Access Journals: DOAJ Articles Arctic Bering Strait Atmospheric Chemistry and Physics 23 5 3363 3382 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 L. Cao S. Li Y. Gu Y. Luo A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System) |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
The tropospheric ozone depletion event (ODE), first observed at Barrow (now known as Utqiaġvik), Alaska, is a phenomenon that frequently occurs during the springtime in the Arctic. In this study, we performed a three-dimensional model study on ODEs occurring at Barrow and its surrounding areas between 28 March and 6 April 2019 using a 3-D multi-scale air quality model, CMAQ (Community Multiscale Air Quality Modeling System). Several ODEs observed at Barrow were captured, and two of them were thoroughly analyzed using the process analysis method to estimate contributions of horizontal transport, vertical transport, dry deposition, and the overall chemical process to the variations in ozone and bromine species during ODEs. We found that the ODE occurring between 30 and 31 March 2019 (referred to as ODE1) was primarily caused by the horizontal transport of low-ozone air from the Beaufort Sea to Barrow. The formation of this low-ozone air over the sea was largely attributed to a release of sea-salt aerosols from the Bering Strait under strong wind conditions, stemming from a cyclone generated on the Chukotka Peninsula. It was also discovered that the surface ozone dropped to less than 5 ppb over the Beaufort Sea, and the overall chemical process contributed up to 10 ppb to the ozone loss. Moreover, BrO over the sea reached a maximum of approximately 80 ppt. This low-ozone air over the sea was then horizontally transported to Barrow, leading to the occurrence of ODE1. Regarding another ODE on 2 April (ODE2), we found that its occurrence was also dominated by the horizontal transport from the sea, but under the control of an anticyclone. The termination of this ODE was mainly attributed to the replenishment of ozone-rich air from the free troposphere by a strong vertical transport. |
format |
Article in Journal/Newspaper |
author |
L. Cao S. Li Y. Gu Y. Luo |
author_facet |
L. Cao S. Li Y. Gu Y. Luo |
author_sort |
L. Cao |
title |
A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System) |
title_short |
A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System) |
title_full |
A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System) |
title_fullStr |
A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System) |
title_full_unstemmed |
A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System) |
title_sort |
three-dimensional simulation and process analysis of tropospheric ozone depletion events (odes) during the springtime in the arctic using cmaq (community multiscale air quality modeling system) |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/acp-23-3363-2023 https://doaj.org/article/a3302e1ae9e346e5a182578fe385d0d4 |
geographic |
Arctic Bering Strait |
geographic_facet |
Arctic Bering Strait |
genre |
Arctic Barrow Beaufort Sea Bering Strait Chukotka Chukotka Peninsula Alaska |
genre_facet |
Arctic Barrow Beaufort Sea Bering Strait Chukotka Chukotka Peninsula Alaska |
op_source |
Atmospheric Chemistry and Physics, Vol 23, Pp 3363-3382 (2023) |
op_relation |
https://acp.copernicus.org/articles/23/3363/2023/acp-23-3363-2023.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-23-3363-2023 1680-7316 1680-7324 https://doaj.org/article/a3302e1ae9e346e5a182578fe385d0d4 |
op_doi |
https://doi.org/10.5194/acp-23-3363-2023 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
23 |
container_issue |
5 |
container_start_page |
3363 |
op_container_end_page |
3382 |
_version_ |
1766333982370168832 |