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The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China

文献类型：期刊论文

作者Ren, Hongmei5,6; Li, Ang6; Xie, Pinhua4,5,6; Hu, Zhaokun6; Xu, Jin6; Huang, Yeyuan5,6; Li, Xiaomei5,6; Zhong, Hongyan3,6; Zhang, Hairong5,6; Tian, Xin6
刊名REMOTE SENSING
出版日期2021-12-01
卷号13
关键词MAX-DOAS haze pollution dust pollution
DOI10.3390/rs13245133
通讯作者Li, Ang(angli@aiofm.ac.cn)
英文摘要Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H2O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (r) between H2O and AE at different heights decreased during dust processes and the correlation slope (|k|) increased, whereas r increased and |k| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O-4 absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H2O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H2O VCD decreased; in haze pollution processes, both H2O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was >60%) and dust pollution (WD was >4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO2, SO2, and HCHO) and H2O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification.
WOS关键词ABSORPTION CROSS-SECTIONS ; WATER-VAPOR ; METEOROLOGICAL CONDITIONS ; ATMOSPHERIC CIRCULATION ; REGIONAL TRANSPORT ; POLLUTION EPISODES ; TROPOSPHERIC NO2 ; AIR-POLLUTION ; RURAL SITE ; AEROSOLS
资助项目National Natural Science Foundation of China[41775029] ; National Natural Science Foundation of China[41975037] ; National Key Research and Development Project of China[2018YFC0213201] ; National Key Research and Development Project of China[2018YFC0213801] ; Science and Technology Commission of Shanghai Municipality[17DZ1203102] ; Key Research and Development Project of Anhui Province[202004i07020013]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
出版者MDPI
WOS记录号WOS:000737281700001
资助机构National Natural Science Foundation of China ; National Key Research and Development Project of China ; Science and Technology Commission of Shanghai Municipality ; Key Research and Development Project of Anhui Province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/127145]  
专题中国科学院合肥物质科学研究院
通讯作者Li, Ang
作者单位1.Beijing Weather Observ, Beijing 100089, Peoples R China
2.China Natl Environm Monitoring Ctr, Beijing 100012, Peoples R China
3.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China
4.Chinese Acad Sci, Inst Urban Environm, CAS Ctr Excellence Reg Atmospher Environm, Xiamen 361000, Peoples R China
5.Univ Sci & Technol China, Hefei 230026, Peoples R China
6.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Ren, Hongmei,Li, Ang,Xie, Pinhua,et al. The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China[J]. REMOTE SENSING,2021,13.
APA Ren, Hongmei.,Li, Ang.,Xie, Pinhua.,Hu, Zhaokun.,Xu, Jin.,...&Du, Chuanyao.(2021).The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China.REMOTE SENSING,13.
MLA Ren, Hongmei,et al."The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China".REMOTE SENSING 13(2021).

入库方式： OAI收割

来源：合肥物质科学研究院

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