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Vertical profiling of black carbon and ozone using a multicopter unmanned aerial vehicle (UAV) in urban Shenzhen of South China
Wu, Cheng1,2; Liu, Ben3; Wu, Dui1,2,4; Yang, Honglong5; Mao, Xia5; Tan, Jian1,2; Liang, Yue1,2; Sun, Jia Yin1,2; Xia, Rui1,2; Sun, Jiaren6; He, Guowen1,2; Li, Mei1,2; Deng, Tao4; Zhou, Zhen1,2; Li, Yong Jie3
2021-12-20
Source PublicationScience of the Total Environment
ISSN0048-9697
Volume801Pages:149689
Abstract

Existing studies on vertical profiling of black carbon (BC) and ozone (O) were mainly conducted in the rural areas, leading to limited knowledge of their vertical distributions in the urban area. To fill this knowledge gap, vertical profiling (0–500 m and 0–900 m, AGL) of BC and O was conducted in a highly urbanized area of Shenzhen in subtropical South China using a multicopter unmanned aerial vehicle (UAV) platform. In total 32 flights were conducted from the 10th to 15th, December 2017 (winter campaign) and 42 flights from the 19th to 28th, August 2018 (summer campaign) with 4 time slots per day, including morning, afternoon, evening, and midnight. In general, equivalent BC (eBC) concentration decreased as the height increased with an overall slope of −0.13 μg m per 100 m in the winter campaign and −0.08 μg m per 100 m in the summer campaign. On the contrary, an increase of O level with altitude was observed (7.8 ppb per 100 m). Absorption Ångström exponent (AAE) exhibits a slightly increasing trend with height. Seasonality of eBC vertical profiles was observed in morning, afternoon and midnight flights, but not for evening flights. The analysis showed the shape of vertical profiles of eBC and O can be affected by planetary boundary layer height (PBLH) and air mass origin. Calculated heating rates due to BC show distinct seasonal variability for morning but not for afternoon, because of the counteracting effects by solar irradiance in the subtropical afternoon and eBC concentration in urban South China influenced by the monsoon climate.

KeywordBlack Carbon Ozone Unmanned Aerial Vehicle Vertical Profile
DOI10.1016/j.scitotenv.2021.149689
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000704388000009
Scopus ID2-s2.0-85113710217
Fulltext Access
FWCI1.7378418
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF OCEAN SCIENCE AND TECHNOLOGY
DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorWu, Cheng; Li, Yong Jie
Affiliation1.Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Jinan University, Guangzhou, 510632, China
2.Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou, 510632, China
3.Department of Civil and Environmental Engineering and Centre for Regional Oceans, Faculty of Science and Technology, University of Macau, Macao
4.Institute of Tropical and Marine Meteorology, CMA, Guangzhou, 510080, China
5.Shenzhen Meteorological Bureau, CMA, Shenzhen, 518040, China
6.Key Laboratory of urban ecological Environmental Simulation and protection, South China Institute of Environmental Sciences, the Ministry of Ecology and Environment of PRC, Guangzhou, 510530, China
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Wu, Cheng,Liu, Ben,Wu, Dui,et al. Vertical profiling of black carbon and ozone using a multicopter unmanned aerial vehicle (UAV) in urban Shenzhen of South China[J]. Science of the Total Environment,2021,801:149689.
APA Wu, Cheng,Liu, Ben,Wu, Dui,Yang, Honglong,Mao, Xia,Tan, Jian,Liang, Yue,Sun, Jia Yin,Xia, Rui,Sun, Jiaren,He, Guowen,Li, Mei,Deng, Tao,Zhou, Zhen,&Li, Yong Jie.(2021).Vertical profiling of black carbon and ozone using a multicopter unmanned aerial vehicle (UAV) in urban Shenzhen of South China.Science of the Total Environment,801,149689.
MLA Wu, Cheng,et al."Vertical profiling of black carbon and ozone using a multicopter unmanned aerial vehicle (UAV) in urban Shenzhen of South China".Science of the Total Environment 801(2021):149689.
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