中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
Quantifying the drivers of surface ozone anomalies in the urban areas over the Qinghai-Tibet Plateau

文献类型：期刊论文

作者Yin, Hao6,7; Sun, Youwen6,7; Notholt, Justus1; Palm, Mathias1; Ye, Chunxiang2; Liu, Cheng3,4,5,7
刊名ATMOSPHERIC CHEMISTRY AND PHYSICS
出版日期2022-11-09
卷号22
ISSN号1680-7316
DOI10.5194/acp-22-14401-2022
通讯作者Sun, Youwen(ywsun@aiofm.ac.cn) ; Liu, Cheng(chliu81@ustc.edu.cn)
英文摘要Improved knowledge of the chemistry and drivers of surface ozone over the Qinghai-Tibet Plateau (QTP) is significant for regulatory and control purposes in this high-altitude region in the Himalayas. In this study, we investigate the processes and drivers of surface ozone anomalies (defined as deviations of ozone levels relative to their seasonal means) between 2015 and 2020 in urban areas over the QTP. We separate quantitatively the contributions of anthropogenic emissions and meteorology to surface ozone anomalies by using the random forest (RF) machine-learning model-based meteorological normalization method. Diurnal and seasonal surface ozone anomalies over the QTP were mainly driven by meteorological conditions, such as temperature, planetary boundary layer height, surface incoming shortwave flux, downward transport velocity and inter-annual anomalies were mainly driven by anthropogenic emission. Depending on region and measurement hour, diurnal surface ozone anomalies varied over -27.82 to 37.11 mu g m(-3), whereas meteorological and anthropogenic contributions varied over -33.88 to 35.86 mu g m(-3) and -4.32 to 4.05 mu g m(-3) respectively. Exceptional meteorology drove 97 % of surface ozone non-attainment events from 2015 to 2020 in the urban areas over the QTP. Monthly averaged surface ozone anomalies from 2015 to 2020 varied with much smaller amplitudes than their diurnal anomalies, whereas meteorological and anthropogenic contributions varied over 7.63 to 55.61 mu g m(-3) and 3.67 to 35.28 mu g m(-3) respectively. The inter-annual trends of surface ozone in Ngari, Lhasa, Naqu, Qamdo, Diqing, Haixi and Guoluo can be attributed to anthropogenic emissions in 95.77 %, 96.30 %, 97.83 %, 82.30 %, 99.26 % and 87.85 %, and meteorology in 4.23 %, 3.70 %, 2.17 %, 3.19 %, 0.74 % and 12.15 % respectively. The inter-annual trends of surface ozone in other cities were fully driven by anthropogenic emission, whereas the increasing inter-annual trends would have larger values if not for the favorable meteorological conditions. This study can not only improve our knowledge with respect to spatiotemporal variability of surface ozone but also provide valuable implications for ozone mitigation over the QTP.
WOS关键词WALIGUAN GAW STATION ; NORTH CHINA PLAIN ; LONG-TERM TRENDS ; PYRAMID NCO-P ; 5079 M A.S.L. ; EASTERN CHINA ; METEOROLOGICAL NORMALIZATION ; ANTHROPOGENIC EMISSIONS ; PARTICULATE POLLUTANTS ; TIME-SERIES
资助项目National Natural Science Foundation of China[U21A2027] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23020301] ; Key Research and Development Project of Anhui Province[202104i07020002] ; Major Projects of High Resolution Earth Observation Systems of National Science and Technology[05-Y30B01-9001-19/20-3] ; Youth Innovation Promotion Association, CAS[2019434] ; Sino-German Mobility programme - National Natural Science Foundation of China (NSFC)[M-0036] ; Deutsche Forschungsgemeinschaft (DFG)
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000880202300001
出版者COPERNICUS GESELLSCHAFT MBH
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research and Development Project of Anhui Province ; Major Projects of High Resolution Earth Observation Systems of National Science and Technology ; Youth Innovation Promotion Association, CAS ; Sino-German Mobility programme - National Natural Science Foundation of China (NSFC) ; Deutsche Forschungsgemeinschaft (DFG)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/130128]  
专题中国科学院合肥物质科学研究院
通讯作者Sun, Youwen; Liu, Cheng
作者单位1.Univ Bremen, Inst Environm Phys, POB 330440, D-28334 Bremen, Germany
2.Peking Univ, Coll Environm Sci & Engn, State Key Lab Environm Simulat & Pollut Control, Beijing 100871, Peoples R China
3.Univ Sci & Technol China, Anhui Prov Key Lab Polar Environm & Global Change, Hefei 230026, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
5.Univ Sci & Technol China, Key Lab Precis Sci Instrumentat Anhui Higher Educ, Hefei 230026, Peoples R China
6.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, HFIPS, Hefei 230031, Peoples R China
7.Univ Sci & Technol China, Dept Precis Machinery & Precis Instrumentat, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Yin, Hao,Sun, Youwen,Notholt, Justus,et al. Quantifying the drivers of surface ozone anomalies in the urban areas over the Qinghai-Tibet Plateau[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2022,22.
APA Yin, Hao,Sun, Youwen,Notholt, Justus,Palm, Mathias,Ye, Chunxiang,&Liu, Cheng.(2022).Quantifying the drivers of surface ozone anomalies in the urban areas over the Qinghai-Tibet Plateau.ATMOSPHERIC CHEMISTRY AND PHYSICS,22.
MLA Yin, Hao,et al."Quantifying the drivers of surface ozone anomalies in the urban areas over the Qinghai-Tibet Plateau".ATMOSPHERIC CHEMISTRY AND PHYSICS 22(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。