| Title | A study of elevated pollution layer over the North China Plain using aircraft measurements |
| Authors | Liu, Quan Ding, Deping Huang, Mengyu Tian, Ping Zhao, Delong Wang, Fei Li, Xia Bi, Kai Sheng, Jiujiang Zhou, Wei Liu, Dantong Huang, Rujin Zhao, Chunsheng |
| Affiliation | Beijing Meteorol Bur, Beijing Weather Modificat Off, Beijing 100089, Peoples R China. Univ Manchester, Ctr Atmospher Sci, Sch Earth & Environm Sci, Manchester M13 9PL, Lancs, England. Zhejiang Univ, Sch Earth Sci, Dept Atmospher Sci, Hangzhou, Zhejiang, Peoples R China. Chinese Acad Sci, SKLLQG, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China. Peking Univ, Sch Phys, Dept Atmospher Sci, Beijing 100871, Peoples R China. Chinese Meteorol Adm, Inst Urban Meteorol, Beijing 100089, Peoples R China. China Meteorol Adm, Field Expt Base Cloud & Precipitat Res North Chin, Beijing 101200, Peoples R China. Beijing Key Lab Cloud Precipitat & Atmospher Wate, Beijing 100089, Peoples R China. Beijing Meteorol Bur, Beijing Weather Modificat Off, Beijing 100089, Peoples R China. Liu, DT (reprint author), Univ Manchester, Ctr Atmospher Sci, Sch Earth & Environm Sci, Manchester M13 9PL, Lancs, England. |
| Keywords | Elevated pollution layer Aircraft measurement Regional transport Vertical mixing North China plain AEROSOL MASS-SPECTROMETER PLANETARY BOUNDARY-LAYER REGIONAL TRANSPORT COLLECTION EFFICIENCIES CHEMICAL-COMPOSITION SPATIAL-DISTRIBUTION WINTER HAZE AIR-QUALITY LIDAR IMPACT |
| Issue Date | 2018 |
| Publisher | ATMOSPHERIC ENVIRONMENT |
| Citation | ATMOSPHERIC ENVIRONMENT. 2018, 190, 188-194. |
| Abstract | An elevated pollution layer (EPL) at altitude -1700 m was observed over the North China Plain (NCP) in November 2016. The vertical profiles of aerosol loadings, chemical compositions and meteorological parameters were in-situ measured at both ground and aircraft platforms. The EPLs were observed simultaneously over Beijing and Baoding city (-150 km distance between) with similar aerosol concentration and size distribution, indicating the impact of the EPL at regional scale. The synoptic and remote sensing analysis suggest the pollutants in the EPL may result from regional transport from the polluted southwest, and then elevated by the influence of anticyclone circulation and surrounding terrain. The descent air mass next day may lead to EPL entrainment and contribute to increased aerosol concentration at lower level. The non-refractory compositions measured by aerosol mass spectrometer showed more significant fraction of nitrate and secondary organics in the EPL compared to the other layers. The pollutants in the EPL was then mixed into the developed planetary boundary layer (PBL), leading to uniform distribution of aerosol composition. Such atmospheric stratification at high level and its subsequent impact on the lower level needs to be considered for the future radiative forcing study over this region. |
| URI | http://hdl.handle.net/20.500.11897/517179 |
| ISSN | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2018.07.024 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 物理学院 |
