A comparative analysis of aerosol microphysical, optical and radiative properties during the Spring Festival holiday over Beijing and surrounding regions
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A comparative analysis of aerosol microphysical, optical and radiative properties during the Spring Festival holiday over Beijing and surrounding regions

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A comparative analysis of aerosol microphysical, optical and radiative properties during the Spring Festival holiday over Beijing and surrounding regions

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dc.contributor.author Zheng, Yu
dc.contributor.author Che, Huizheng
dc.contributor.author Xia, Xiangao
dc.contributor.author Wang, Yaqiang
dc.contributor.author Zhao, Hujia
dc.contributor.author Wang, Hong
dc.contributor.author Estellés Leal, Víctor
dc.contributor.author An, Linchang
dc.contributor.author Gui, Ke
dc.contributor.author Sun, Tianze
dc.contributor.author Kang, Boshi
dc.date.accessioned 2019-04-12T12:49:30Z
dc.date.available 2019-04-12T12:49:30Z
dc.date.issued 2018
dc.identifier.uri http://hdl.handle.net/10550/69941
dc.description.abstract Using ground-based data, meteorological observations, and atmospheric environmental monitoring data, a comparative analysis of the microphysical and optical properties, and radiative forcing of aerosols was conducted between three stations in different developed environments during a severe air pollution episode during the Spring Festival over Beijing. During the most polluted period, the daily peak values of the aerosol optical depth were ~1.62, ~1.73, and ~0.74, which were about 2.6, 2.9, and 2.1 times higher than the background levels at the CAMS, Xianghe, and Shangdianzi sites, respectively. The daily peak values of the single scattering albedo were ~0.95, ~0.96, and ~0.87. The volume of fine-mode particles varied from 0.04 to 0.21 µm3 µm-2, 0.06 to 0.17 µm3 µm-2, and 0.01 to 0.10 µm3 µm-2, which were about 0.3 to 5.8, 1.1 to 4.7, and 1.2 to 8.9 times greater than the background values, respectively. The daily absorption aerosol optical depth was ~0.01 to ~0.13 at CAMS, ~0.03 to ~0.14 at Xianghe, and ~0.01 to ~0.09 at Shangdianzi, and the absorption Ångström exponents reflected a significant increase in organic aerosols over CAMS and Xianghe and in black carbon over Shangdianzi. Aerosol radiative forcing at the bottom of the atmosphere varied from -20 to -130, -40 to -150, and -10 to -110 W m-2 for the whole holiday period, indicating the cooling effect. The potential source contribution function and concentration-weighted trajectory analysis showed that Beijing, the southern parts of Hebei and Shanxi, and the central northern part of Shandong contributed greatly to the pollution.
dc.language.iso eng
dc.relation.ispartof Aerosol And Air Quality Research, 2018, vol. 18, num. 7, p. 1774-1787
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Zheng, Yu Che, Huizheng Xia, Xiangao Wang, Yaqiang Zhao, Hujia Wang, Hong Estellés Leal, Víctor An, Linchang Gui, Ke Sun, Tianze Kang, Boshi 2018 A comparative analysis of aerosol microphysical, optical and radiative properties during the Spring Festival holiday over Beijing and surrounding regions Aerosol And Air Quality Research 18 7 1774 1787
dc.subject Aerosols
dc.subject Termodinàmica atmosfèrica
dc.subject Geofísica
dc.subject Aire Contaminació
dc.title A comparative analysis of aerosol microphysical, optical and radiative properties during the Spring Festival holiday over Beijing and surrounding regions
dc.type info:eu-repo/semantics/article
dc.date.updated 2019-04-12T12:49:31Z
dc.identifier.doi https://doi.org/10.4209/aaqr.2017.10.0396
dc.identifier.idgrec 126884

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