Inter‐annual variation of the spring haze pollution over the North China Plain: Roles of atmospheric circulation and sea surface temperature
Haze pollution is a serious air quality issue in China. Previous studies over the North China Plain (NCP) mainly focused on analysing the haze during boreal winter. However, the variation in haze during spring and the related factors remain unclear. This study investigates inter‐annual variation of...
Published in: | International Journal of Climatology |
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crwiley:10.1002/joc.5842 2024-09-15T18:22:43+00:00 Inter‐annual variation of the spring haze pollution over the North China Plain: Roles of atmospheric circulation and sea surface temperature Chen, Shangfeng Guo, Jianping Song, Linye Li, Jian Liu, Lin Cohen, Jason Blake Ministry of Science and Technology of the People's Republic of China China Postdoctoral Science Foundation Chinese Academy of Meteorological Sciences National Natural Science Foundation of China 2018 http://dx.doi.org/10.1002/joc.5842 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5842 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5842 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 39, issue 2, page 783-798 ISSN 0899-8418 1097-0088 journal-article 2018 crwiley https://doi.org/10.1002/joc.5842 2024-08-13T04:16:56Z Haze pollution is a serious air quality issue in China. Previous studies over the North China Plain (NCP) mainly focused on analysing the haze during boreal winter. However, the variation in haze during spring and the related factors remain unclear. This study investigates inter‐annual variation of the spring haze, which is represented by the humidity‐corrected dry extinction coefficient (DEC) over the NCP. During high DEC years, pronounced positive DEC anomalies appear over the NCP and its surrounding regions. Correspondingly, a notable anticyclonic anomaly is observed over Northeast Asia, inducing significant southeasterly wind anomalies over the NCP. The anomalous southeasterly winds reduce wind speed and increase relative humidity, which provides favourable meteorological conditions for accumulation and growth of aerosol pollutants. Further analysis shows that the North Atlantic Oscillation (NAO) contributes to the formation of anticyclonic anomalies over Northeast Asia via downstream propagating atmospheric wave trains. Additionally, positive sea surface temperature (SST) anomalies over the subtropical northeastern Atlantic Ocean may also impact the DEC variation. The linear barotropic model experiment further confirms the important role of subtropical northeastern Atlantic SST anomalies in contributing to the anomalous anticyclone over Northeast Asia and southerly wind anomalies over the NCP region, which are triggered via eastwards propagating atmospheric wave trains. This study gives support to the idea that the NAO and the North Atlantic SST may be potential predictors for the frequently observed springtime NCP haze variation. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Wiley Online Library International Journal of Climatology 39 2 783 798 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Haze pollution is a serious air quality issue in China. Previous studies over the North China Plain (NCP) mainly focused on analysing the haze during boreal winter. However, the variation in haze during spring and the related factors remain unclear. This study investigates inter‐annual variation of the spring haze, which is represented by the humidity‐corrected dry extinction coefficient (DEC) over the NCP. During high DEC years, pronounced positive DEC anomalies appear over the NCP and its surrounding regions. Correspondingly, a notable anticyclonic anomaly is observed over Northeast Asia, inducing significant southeasterly wind anomalies over the NCP. The anomalous southeasterly winds reduce wind speed and increase relative humidity, which provides favourable meteorological conditions for accumulation and growth of aerosol pollutants. Further analysis shows that the North Atlantic Oscillation (NAO) contributes to the formation of anticyclonic anomalies over Northeast Asia via downstream propagating atmospheric wave trains. Additionally, positive sea surface temperature (SST) anomalies over the subtropical northeastern Atlantic Ocean may also impact the DEC variation. The linear barotropic model experiment further confirms the important role of subtropical northeastern Atlantic SST anomalies in contributing to the anomalous anticyclone over Northeast Asia and southerly wind anomalies over the NCP region, which are triggered via eastwards propagating atmospheric wave trains. This study gives support to the idea that the NAO and the North Atlantic SST may be potential predictors for the frequently observed springtime NCP haze variation. |
author2 |
Ministry of Science and Technology of the People's Republic of China China Postdoctoral Science Foundation Chinese Academy of Meteorological Sciences National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Chen, Shangfeng Guo, Jianping Song, Linye Li, Jian Liu, Lin Cohen, Jason Blake |
spellingShingle |
Chen, Shangfeng Guo, Jianping Song, Linye Li, Jian Liu, Lin Cohen, Jason Blake Inter‐annual variation of the spring haze pollution over the North China Plain: Roles of atmospheric circulation and sea surface temperature |
author_facet |
Chen, Shangfeng Guo, Jianping Song, Linye Li, Jian Liu, Lin Cohen, Jason Blake |
author_sort |
Chen, Shangfeng |
title |
Inter‐annual variation of the spring haze pollution over the North China Plain: Roles of atmospheric circulation and sea surface temperature |
title_short |
Inter‐annual variation of the spring haze pollution over the North China Plain: Roles of atmospheric circulation and sea surface temperature |
title_full |
Inter‐annual variation of the spring haze pollution over the North China Plain: Roles of atmospheric circulation and sea surface temperature |
title_fullStr |
Inter‐annual variation of the spring haze pollution over the North China Plain: Roles of atmospheric circulation and sea surface temperature |
title_full_unstemmed |
Inter‐annual variation of the spring haze pollution over the North China Plain: Roles of atmospheric circulation and sea surface temperature |
title_sort |
inter‐annual variation of the spring haze pollution over the north china plain: roles of atmospheric circulation and sea surface temperature |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/joc.5842 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5842 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5842 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
International Journal of Climatology volume 39, issue 2, page 783-798 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.5842 |
container_title |
International Journal of Climatology |
container_volume |
39 |
container_issue |
2 |
container_start_page |
783 |
op_container_end_page |
798 |
_version_ |
1810462668042010624 |