Fourier transform infrared time series of tropospheric HCN in eastern China: seasonality, interannual variability, and source attribution
文献类型:期刊论文
作者 | Sun, Youwen2![]() ![]() |
刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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出版日期 | 2020-05-11 |
卷号 | 20 |
ISSN号 | 1680-7316 |
DOI | 10.5194/acp-20-5437-2020 |
通讯作者 | Liu, Cheng(chliu81@ustc.edu.cn) ; Zhang, Lin(zhanglg@pku.edu.cn) |
英文摘要 | We analyzed seasonality and interannual variability of tropospheric hydrogen cyanide (HCN) columns in densely populated eastern China for the first time. The results were derived from solar absorption spectra recorded with a ground-based high-spectral-resolution Fourier transform infrared (FTIR) spectrometer in Hefei (31 degrees 54' N, 117 degrees 10' E) between 2015 and 2018. The tropospheric HCN columns over Hefei, China, showed significant seasonal variations with three monthly mean peaks throughout the year. The magnitude of the tropospheric HCN column peaked in May, September, and December. The tropospheric HCN column reached a maximum monthly mean of (9.8 +/- 0.78) x 10(15) molecules cm(-2) in May and a minimum monthly mean of (7.16 +/- 0.75) x 10(15) molecules cm(-2) in November. In most cases, the tropospheric HCN columns in Hefei (32 degrees N) are higher than the FTIR observations in Ny-angstrom lesund (79 degrees N), Kiruna (68 degrees N), Bremen (53 degrees N), Jungfraujoch (47 degrees N), Toronto (44 degrees N), Rikubetsu (43 degrees N), Izana (28 degrees N), Mauna Loa (20 degrees N), La Reunion Maido (21 degrees S), Lauder (45 degrees S), and Arrival Heights (78 degrees S) that are affiliated with the Network for Detection of Atmospheric Composition Change (NDACC). Enhancements of tropospheric HCN column were observed between September 2015 and July 2016 compared to the same period of measurements in other years. The magnitude of the enhancement ranges from 5 % to 46 % with an average of 22 %. Enhancement of tropospheric HCN (Delta HCN) is correlated with the concurrent enhancement of tropospheric CO (Delta CO), indicating that enhancements of tropospheric CO and HCN were due to the same sources. The GEOS-Chem tagged CO simulation, the global fire maps, and the potential source contribution function (PSCF) values calculated using back trajectories revealed that the seasonal maxima in May are largely due to the influence of biomass burning in Southeast Asia (SEAS) (41 +/- 13.1 %), Europe and boreal Asia (EUBA) (21 +/- 9.3 %), and Africa (AF) (22 +/- 4.7 %). The seasonal maxima in September are largely due to the influence of biomass burnings in EUBA (38 +/- 11.3 %), AF (26 +/- 6.7 %), SEAS (14 +/- 3.3 %), and North America (NA) (13.8 +/- 8.4 %). For the seasonal maxima in December, dominant contributions are from AF (36 +/- 7.1 %), EUBA (21 +/- 5.2 %), and NA (18.7 +/- 5.2 %). The tropospheric HCN enhancement between September 2015 and July 2016 at Hefei (32 degrees N) was attributed to an elevated influence of biomass burnings in SEAS, EUBA, and Oceania (OCE) in this period. In particular, an elevated number of fires in OCE in the second half of 2015 dominated the tropospheric HCN enhancement between September and December 2015. An elevated number of fires in SEAS in the first half of 2016 dominated the tropospheric HCN enhancement between January and July 2016. |
WOS关键词 | HIGH-RESOLUTION ; NORTHERN JAPAN ; SPECTROSCOPIC MEASUREMENTS ; ANTHROPOGENIC EMISSIONS ; FTIR MEASUREMENTS ; HYDROGEN-CYANIDE ; CARBON-MONOXIDE ; SURFACE OZONE ; SOLAR SPECTRA ; TRACE GASES |
资助项目 | National High Technology Research and Development Program of China[2019YFC0214802] ; National High Technology Research and Development Program of China[2017YFC0210002] ; National High Technology Research and Development Program of China[2016YFC0203302] ; National High Technology Research and Development Program of China[2018YFC0213201] ; National High Technology Research and Development Program of China[2019YFC0214702] ; National High Technology Research and Development Program of China[2016YFC0200404] ; National Science Foundation of China[41877309] ; National Science Foundation of China[41775025] ; National Science Foundation of China[41575021] ; National Science Foundation of China[51778596] ; National Science Foundation of China[91544212] ; National Science Foundation of China[41722501] ; Sino-German Mobility Programme[M-0036] ; Outstanding Youth Science Foundation[41722501] |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
语种 | 英语 |
WOS记录号 | WOS:000531881700001 |
出版者 | COPERNICUS GESELLSCHAFT MBH |
资助机构 | National High Technology Research and Development Program of China ; National Science Foundation of China ; Sino-German Mobility Programme ; Outstanding Youth Science Foundation |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103323] ![]() |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Liu, Cheng; Zhang, Lin |
作者单位 | 1.Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, HFIPS, Hefei 230031, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China 4.Univ Sci & Technol China, Hefei 230026, Peoples R China 5.Univ Sci & Technol China, Key Lab Precis Sci Instrumentat Anhui Higher Educ, Hefei 230026, Peoples R China 6.Anhui Prov Key Lab Polar Environm & Global Change, Hefei 230026, Peoples R China 7.Univ Bremen, Inst Environm Phys, POB 330440, Bremen 28334, Germany 8.Royal Belgian Inst Space Aeron BIRA IASB, Brussels, Belgium 9.Univ Toronto, Dept Phys, Toronto, ON, Canada 10.Karlsruhe Inst Technol KIT, Inst Meteorol & Climate Res IMK ASF, Karlsruhe, Germany |
推荐引用方式 GB/T 7714 | Sun, Youwen,Liu, Cheng,Zhang, Lin,et al. Fourier transform infrared time series of tropospheric HCN in eastern China: seasonality, interannual variability, and source attribution[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20. |
APA | Sun, Youwen.,Liu, Cheng.,Zhang, Lin.,Palm, Mathias.,Notholt, Justus.,...&Liu, Jianguo.(2020).Fourier transform infrared time series of tropospheric HCN in eastern China: seasonality, interannual variability, and source attribution.ATMOSPHERIC CHEMISTRY AND PHYSICS,20. |
MLA | Sun, Youwen,et al."Fourier transform infrared time series of tropospheric HCN in eastern China: seasonality, interannual variability, and source attribution".ATMOSPHERIC CHEMISTRY AND PHYSICS 20(2020). |
入库方式: OAI收割
来源:合肥物质科学研究院
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