Improving the understanding between climate variability and observed extremes of global NO 2 over the past 15 years
Abstract This work addresses the relationship between major dynamical forcings and variability in NO 2 column measurements. The dominating impact in Northern Southeast Asia is due to El Niño-Southern Oscillation (ENSO); in Indonesia, Northern Australia and South America is due to Indian Ocean Dipole...
Published in: | Environmental Research Letters |
---|---|
Main Authors: | , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
IOP Publishing
2021
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1088/1748-9326/abd502 https://iopscience.iop.org/article/10.1088/1748-9326/abd502 https://iopscience.iop.org/article/10.1088/1748-9326/abd502/pdf |
id |
crioppubl:10.1088/1748-9326/abd502 |
---|---|
record_format |
openpolar |
spelling |
crioppubl:10.1088/1748-9326/abd502 2024-09-15T18:23:50+00:00 Improving the understanding between climate variability and observed extremes of global NO 2 over the past 15 years Deng, Weizhi Cohen, Jason Blake Wang, Shuo Lin, Chuyong Chinese National Young Thousand Talents Program Chinese National Natural Science Foundation Guangdong Provincial Young Talent Support Fund 2021 http://dx.doi.org/10.1088/1748-9326/abd502 https://iopscience.iop.org/article/10.1088/1748-9326/abd502 https://iopscience.iop.org/article/10.1088/1748-9326/abd502/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 16, issue 5, page 054020 ISSN 1748-9326 journal-article 2021 crioppubl https://doi.org/10.1088/1748-9326/abd502 2024-08-12T04:14:48Z Abstract This work addresses the relationship between major dynamical forcings and variability in NO 2 column measurements. The dominating impact in Northern Southeast Asia is due to El Niño-Southern Oscillation (ENSO); in Indonesia, Northern Australia and South America is due to Indian Ocean Dipole (IOD); and in Southern China Land and Sea, Populated Northern China, Siberia, Northern and Arctic Eurasia, Central and Southern Africa, and Western US and Canada is due to North Atlantic Oscillation (NAO). That NO 2 pollution in Indonesia is modulated by IOD contradicts previous work claiming that the emissions in Indonesia are a function of El Niño impacting upon Aerosol Optical Depth and Fire Radiative Power. Simultaneous impacts of concurrent and lagged forcings are derived using multi-linear regression, demonstrating ENSO impacts future NO 2 variability, enhancing NO 2 emissions 7–88 weeks in the future, while IOD and NAO in some cases increase the emissions from or the duration of the future burning season as measured by NO 2 . This impact will also extend to co-emitted aerosols and heat, which may impact the climate. In all cases, lagged forcings exhibit more impact than concurrent forcings, hinting at non-linearity coupling with soil moisture, water table, and other dynamical effects. The regression model formed demonstrates that dynamical forcings are responsible for over 45% of the NO 2 emissions variability in most non-urban areas and over 30% in urban China and sub-arctic regions. These results demonstrate the significance of climate forcing on short-lived air pollutants. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Siberia IOP Publishing Environmental Research Letters 16 5 054020 |
institution |
Open Polar |
collection |
IOP Publishing |
op_collection_id |
crioppubl |
language |
unknown |
description |
Abstract This work addresses the relationship between major dynamical forcings and variability in NO 2 column measurements. The dominating impact in Northern Southeast Asia is due to El Niño-Southern Oscillation (ENSO); in Indonesia, Northern Australia and South America is due to Indian Ocean Dipole (IOD); and in Southern China Land and Sea, Populated Northern China, Siberia, Northern and Arctic Eurasia, Central and Southern Africa, and Western US and Canada is due to North Atlantic Oscillation (NAO). That NO 2 pollution in Indonesia is modulated by IOD contradicts previous work claiming that the emissions in Indonesia are a function of El Niño impacting upon Aerosol Optical Depth and Fire Radiative Power. Simultaneous impacts of concurrent and lagged forcings are derived using multi-linear regression, demonstrating ENSO impacts future NO 2 variability, enhancing NO 2 emissions 7–88 weeks in the future, while IOD and NAO in some cases increase the emissions from or the duration of the future burning season as measured by NO 2 . This impact will also extend to co-emitted aerosols and heat, which may impact the climate. In all cases, lagged forcings exhibit more impact than concurrent forcings, hinting at non-linearity coupling with soil moisture, water table, and other dynamical effects. The regression model formed demonstrates that dynamical forcings are responsible for over 45% of the NO 2 emissions variability in most non-urban areas and over 30% in urban China and sub-arctic regions. These results demonstrate the significance of climate forcing on short-lived air pollutants. |
author2 |
Chinese National Young Thousand Talents Program Chinese National Natural Science Foundation Guangdong Provincial Young Talent Support Fund |
format |
Article in Journal/Newspaper |
author |
Deng, Weizhi Cohen, Jason Blake Wang, Shuo Lin, Chuyong |
spellingShingle |
Deng, Weizhi Cohen, Jason Blake Wang, Shuo Lin, Chuyong Improving the understanding between climate variability and observed extremes of global NO 2 over the past 15 years |
author_facet |
Deng, Weizhi Cohen, Jason Blake Wang, Shuo Lin, Chuyong |
author_sort |
Deng, Weizhi |
title |
Improving the understanding between climate variability and observed extremes of global NO 2 over the past 15 years |
title_short |
Improving the understanding between climate variability and observed extremes of global NO 2 over the past 15 years |
title_full |
Improving the understanding between climate variability and observed extremes of global NO 2 over the past 15 years |
title_fullStr |
Improving the understanding between climate variability and observed extremes of global NO 2 over the past 15 years |
title_full_unstemmed |
Improving the understanding between climate variability and observed extremes of global NO 2 over the past 15 years |
title_sort |
improving the understanding between climate variability and observed extremes of global no 2 over the past 15 years |
publisher |
IOP Publishing |
publishDate |
2021 |
url |
http://dx.doi.org/10.1088/1748-9326/abd502 https://iopscience.iop.org/article/10.1088/1748-9326/abd502 https://iopscience.iop.org/article/10.1088/1748-9326/abd502/pdf |
genre |
North Atlantic North Atlantic oscillation Siberia |
genre_facet |
North Atlantic North Atlantic oscillation Siberia |
op_source |
Environmental Research Letters volume 16, issue 5, page 054020 ISSN 1748-9326 |
op_rights |
http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-9326/abd502 |
container_title |
Environmental Research Letters |
container_volume |
16 |
container_issue |
5 |
container_start_page |
054020 |
_version_ |
1810464111703621632 |