Ground-based MAX-DOAS observations of tropospheric formaldehyde VCDs and comparisons with the CAMS model at a rural site near Beijing during APEC 2014

doi:10.5194/acp-19-3375-2019

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院安徽光学精密机械研究所

	Ground-based MAX-DOAS observations of tropospheric formaldehyde VCDs and comparisons with the CAMS model at a rural site near Beijing during APEC 2014
	Tian, Xin 2,5; Xie, Pinhua 1,2,5; Xu, Jin 2; Wang, Yang 6; Li, Ang 2; Wu, Fengcheng 2; Hu, Zhaokun 2; Liu, Cheng 1,2,3,4; Zhang, Qiong 2
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2019-03-15
卷号	19 期号:5 页码:3375-3393
ISSN号	1680-7316
DOI	10.5194/acp-19-3375-2019
通讯作者	Xie, Pinhua(phxie@aiofm.ac.cn) ; Xu, Jin(jxu@aiofm.ac.cn) ; Wang, Yang(y.wang@mpic.de)
英文摘要	Formaldehyde (HCHO), a key aerosol precursor, plays a significant role in atmospheric photo-oxidation pathways. In this study, HCHO column densities were measured using a Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) instrument at the University of Chinese Academy of Science (UCAS) in Huairou District, Beijing, which is about 50 km away from the city center. Measurements were taken during the period of 1 October 2014 to 31 December 2014, and the Asia-Pacific Economic Cooperation (APEC) summit was organized on 5-11 November. Peak values of HCHO vertical column densities (VCDs) around noon and a good correlation coefficient R-2 of 0.73 between HCHO VCDs and surface O-3 concentration during noontime indicated that the secondary sources of HCHO through photochemical reactions of volatile organic compounds (VOCs) dominated the HCHO values in the area around UCAS. Dependences of HCHO VCDs on wind fields and backward trajectories were identified and indicated that the HCHO values in the area around UCAS were considerably affected by the transport of pollutants (VOCs) from polluted areas in the south. The effects of control measures on HCHO VCDs during the APEC period were evaluated. During the period of the APEC conference, the average HCHO VCDs were similar to 38% +/- 20% and similar to 30% +/- 24% lower than that during the pre-APEC and post-APEC periods calculated at the 95% confidence limit, respectively. This phenomenon could be attributed to both the effects of prevailing northwest wind fields during APEC and strict control measures. We also compared the MAX-DOAS results with the Copernicus Atmosphere Monitoring Service (CAMS) model. The HCHO VCDs of the CAMS model and MAX-DOAS were generally consistent with a correlation coefficient R-2 greater than 0.68. The peak values were consistently captured by both data datasets, but the low values were systematically underestimated by the CAMS model. This finding may indicate that the CAMS model can adequately simulate the effects of the transport and the secondary sources of HCHO but underestimates the local primary sources.
资助项目	University of Chinese Academy of Sciences ; Peking University ; National Natural Science Foundation of China[41530644] ; National Natural Science Foundation of China[41405033] ; National Natural Science Foundation of China[41605013]
WOS关键词	ABSORPTION CROSS-SECTIONS ; ROTATIONAL RAMAN-SCATTERING ; SATELLITE-OBSERVATIONS ; RADIATIVE-TRANSFER ; OZONE DEPLETION ; MIXING RATIOS ; RIVER DELTA ; NO2 ; HCHO ; CHINA
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000461489700002
资助机构	University of Chinese Academy of Sciences ; University of Chinese Academy of Sciences ; University of Chinese Academy of Sciences ; University of Chinese Academy of Sciences ; Peking University ; Peking University ; Peking University ; Peking University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; University of Chinese Academy of Sciences ; University of Chinese Academy of Sciences ; University of Chinese Academy of Sciences ; University of Chinese Academy of Sciences ; Peking University ; Peking University ; Peking University ; Peking University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/42480]
专题	合肥物质科学研究院_中科院安徽光学精密机械研究所
通讯作者	Xie, Pinhua; Xu, Jin; Wang, Yang
作者单位	1.Chinese Acad Sci, Inst Urban Environm, CAS Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China 4.USTC, Anhui Prov Key Lab Polar Environm & Global Change, Hefei 230026, Anhui, Peoples R China 5.Univ Sci & Technol China, Sch Environm Sci & Optoeclect Technol, Hefei 230026, Anhui, Peoples R China 6.Max Planck Inst Chem, D-55128 Mainz, Germany
推荐引用方式 GB/T 7714	Tian, Xin,Xie, Pinhua,Xu, Jin,et al. Ground-based MAX-DOAS observations of tropospheric formaldehyde VCDs and comparisons with the CAMS model at a rural site near Beijing during APEC 2014[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(5):3375-3393.
APA	Tian, Xin.,Xie, Pinhua.,Xu, Jin.,Wang, Yang.,Li, Ang.,...&Zhang, Qiong.(2019).Ground-based MAX-DOAS observations of tropospheric formaldehyde VCDs and comparisons with the CAMS model at a rural site near Beijing during APEC 2014.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(5),3375-3393.
MLA	Tian, Xin,et al."Ground-based MAX-DOAS observations of tropospheric formaldehyde VCDs and comparisons with the CAMS model at a rural site near Beijing during APEC 2014".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.5(2019):3375-3393.