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Article: Circulation-regulated impacts of aerosol pollution on urban heat island in Beijing

TitleCirculation-regulated impacts of aerosol pollution on urban heat island in Beijing
Authors
Issue Date2022
Citation
Atmospheric Chemistry and Physics, 2022, v. 22, n. 20, p. 13341-13353 How to Cite?
AbstractUnprecedented urbanization in China has led to serious urban heat island (UHI) issues, exerting intense heat stress on urban residents. Based on the observed temperature and PM2.5 concentrations in Beijing over 2016-2020, we find diverse influences of aerosol pollution on urban heat island intensity (UHII) under different circulations. When northerly winds are prevalent in urban Beijing, UHII tends to be much higher in both daytime and nighttime and it is less affected by aerosol concentrations. However, when southerly and westerly winds are dominant in rural Beijing, UHII is significantly reduced by aerosol pollution. Using coupled aerosol-radiation weather simulations, we demonstrate the underlying physical mechanism which is associated with local circulation and resulting spatial distribution of aerosols. Our results also highlight the role of black carbon in aggravating UHI, especially during nighttime. It could thus be targeted for cooperative management of heat islands and aerosol pollution.
Persistent Identifierhttp://hdl.handle.net/10722/329890
ISSN
2023 Impact Factor: 5.2
2023 SCImago Journal Rankings: 2.138
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Fan-
dc.contributor.authorCarmichael, Gregory R.-
dc.contributor.authorWang, Jing-
dc.contributor.authorChen, Bin-
dc.contributor.authorHuang, Bo-
dc.contributor.authorLi, Yuguo-
dc.contributor.authorYang, Yuanjian-
dc.contributor.authorGao, Meng-
dc.date.accessioned2023-08-09T03:36:05Z-
dc.date.available2023-08-09T03:36:05Z-
dc.date.issued2022-
dc.identifier.citationAtmospheric Chemistry and Physics, 2022, v. 22, n. 20, p. 13341-13353-
dc.identifier.issn1680-7316-
dc.identifier.urihttp://hdl.handle.net/10722/329890-
dc.description.abstractUnprecedented urbanization in China has led to serious urban heat island (UHI) issues, exerting intense heat stress on urban residents. Based on the observed temperature and PM2.5 concentrations in Beijing over 2016-2020, we find diverse influences of aerosol pollution on urban heat island intensity (UHII) under different circulations. When northerly winds are prevalent in urban Beijing, UHII tends to be much higher in both daytime and nighttime and it is less affected by aerosol concentrations. However, when southerly and westerly winds are dominant in rural Beijing, UHII is significantly reduced by aerosol pollution. Using coupled aerosol-radiation weather simulations, we demonstrate the underlying physical mechanism which is associated with local circulation and resulting spatial distribution of aerosols. Our results also highlight the role of black carbon in aggravating UHI, especially during nighttime. It could thus be targeted for cooperative management of heat islands and aerosol pollution.-
dc.languageeng-
dc.relation.ispartofAtmospheric Chemistry and Physics-
dc.titleCirculation-regulated impacts of aerosol pollution on urban heat island in Beijing-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.5194/acp-22-13341-2022-
dc.identifier.scopuseid_2-s2.0-85141944107-
dc.identifier.volume22-
dc.identifier.issue20-
dc.identifier.spage13341-
dc.identifier.epage13353-
dc.identifier.eissn1680-7324-
dc.identifier.isiWOS:000869047300001-

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