GSTDTAP
DOI10.1088/1748-9326/ab4872
Enhanced heating rate of black carbon above the planetary boundary layer over megacities in summertime
Liu, Dantong1; Zhao, Delong2,3,4; Xie, Zhenzhen5; Yu, Chenjie6; Chen, Ying7; Tian, Ping2,3; Ding, Shuo1; Hu, Kang1; Lowe, Douglas6; Liu, Quan2,3; Zhou, Wei2,3; Wang, Fei2,3; Sheng, Jiujiang2,3; Kong, Shaofei8; Hu, Dawei6; Wang, Zhenzhu9; Huang, Mengyu2,3; Ding, Deping2,3
2019-12-01
发表期刊ENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
出版年2019
卷号14期号:12
文章类型Article
语种英语
国家Peoples R China; England
英文摘要

The fast development of a secondary aerosol layer was observed over megacities in eastern Asia during summertime. Within three hours, from midday to early afternoon, the contribution of secondary aerosols above the planetary boundary layer (PBL) increased by a factor of three to five, and the coatings on black carbon (BC) also increased and enhanced its absorption efficiency by 50%. This tended to result from the intensive actinic flux received above the PBL which promoted photochemical reactions. The absorption of BC could be further amplified by the strong reflection of solar radiation over the cloud top across the PBL. This enhanced heating effect of BC introduced by combined processes (intensive solar radiation, secondary formation and cloud reflection) may considerably increase the temperature inversion above the PBL. This mechanism should be considered when evaluating the radiative impact of BC, especially for polluted regions receiving strong solar radiation.


英文关键词black carbon absorption enhancement heating rate cloud reflection
领域气候变化
收录类别SCI-E
WOS记录号WOS:000499338500001
WOS关键词AEROSOL ; MICROPHYSICS ; ABSORPTION ; POLLUTION ; CLOUDS ; CHINA
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/224718
专题环境与发展全球科技态势
作者单位1.Zhejiang Univ, Sch Earth Sci, Dept Atmospher Sci, Hangzhou, Zhejiang, Peoples R China;
2.Beijing Key Lab Cloud Precipitat & Atmospher Wate, Beijing, Peoples R China;
3.Beijing Weather Modificat Off, Beijing, Peoples R China;
4.Nanjing Univ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China;
5.Huaian Meteorol Observ Jiangsu Prov, Huaian, Peoples R China;
6.Univ Manchester, Sch Earth & Environm Sci, Ctr Atmospher Sci, Manchester M13 9PL, Lancs, England;
7.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England;
8.China Univ Geosci Wuhan, Sch Environm Studies, Dept Atmospher Sci, Wuhan, Hubei, Peoples R China;
9.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714
Liu, Dantong,Zhao, Delong,Xie, Zhenzhen,et al. Enhanced heating rate of black carbon above the planetary boundary layer over megacities in summertime[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(12).
APA Liu, Dantong.,Zhao, Delong.,Xie, Zhenzhen.,Yu, Chenjie.,Chen, Ying.,...&Ding, Deping.(2019).Enhanced heating rate of black carbon above the planetary boundary layer over megacities in summertime.ENVIRONMENTAL RESEARCH LETTERS,14(12).
MLA Liu, Dantong,et al."Enhanced heating rate of black carbon above the planetary boundary layer over megacities in summertime".ENVIRONMENTAL RESEARCH LETTERS 14.12(2019).
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