DOI: 10.1016/j.atmosenv.2015.07.008
Scopus记录号: 2-s2.0-84938069768
论文题名: Atmospheric CO<inf>2</inf> and its δ13C measurements from flask sampling at Lin'an regional background station in China
作者: Xia L ; , Zhou L ; , Tans P ; P ; , Liu L ; , Zhang G ; , Wang H ; , Luan T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 117 起始页码: 220
结束页码: 226
语种: 英语
英文关键词: Atmospheric CO2
; Background characteristics
; Isotopic signature
; Yangtze River Delta
; δ13C
Scopus关键词: Bottles
; Fuels
; Atmospheric CO
; Background characteristics
; Fossil fuel combustion
; Isotopic signatures
; Peak to peak amplitudes
; Stable isotope ratios
; Vegetative seasons
; Yangtze river delta
; Isotopes
; carbon 13
; carbon dioxide
; fossil fuel
; air sampling
; amplitude
; atmospheric chemistry
; carbon cycle
; carbon dioxide
; carbon isotope
; combustion
; concentration (composition)
; fossil fuel
; heating
; isotopic ratio
; measurement method
; air monitoring
; air pollution
; air sampling
; air temperature
; Article
; biosphere
; carbon source
; China
; combustion
; energy consumption
; greenhouse gas
; gross national product
; growth rate
; photosynthesis
; priority journal
; seasonal variation
; time series analysis
; winter
; China
; Linan
; Yangtze Delta
; Zhejiang
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: This study presents CO2 concentrations of air flask samples obtained at a regional background station Lin'an (LAN) in China from January 2009 to December 2013, as well as their stable isotope ratios (δ13C) from January 2011 to December 2013. Background data is selected to represent background characteristics of atmospheric CO2 and δ13C over Yangzte River Delta. The annual mean background CO2 concentrations vary from 395.0 ppm in 2009 to 407.6 ppm in 2013, with a growth rate of 2.8 ± 0.1 ppm yr-1 over the study period, which is higher than the global average level. The annual mean values of δ13C vary from -8.55‰ in 2011 to -8.73‰ in 2013, with a growth rate of -0.029 ± 0.010‰ yr-1. Seasonal cycles of CO2 concentrations and δ13C are observed to be obvious at LAN. The minimum and maximum values of mean seasonal CO2 cycle appear in August and January, respectively, with the peak-to-peak amplitude of 19.4 ppm. The sign of δ13C seasonal cycle is opposite to that of CO2 , and the peak-to-peak amplitude is 0.85‰. The isotopic signature of CO2 sources/sinks (δs ) is also discussed in this paper. The estimated δs values for heating season (December-February) is -25.4‰ and for vegetative season is -21.3‰ (March-November) suggest the significant impact of fossil fuel combustions during winter heating season and biological activities during vegetative season. © 2015 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82148
Appears in Collections: 气候变化事实与影响
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作者单位: Nanjing University of Information Science and Technology, Nanjing, China; Chinese Academy of Meteorological Sciences (CAMS), China Meteorological Administration (CMA), Beijing, China; Climate Monitoring and Diagnostics Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, United States
Recommended Citation:
Xia L,, Zhou L,, Tans P,et al. Atmospheric CO<inf>2</inf> and its δ13C measurements from flask sampling at Lin'an regional background station in China[J]. Atmospheric Environment,2015-01-01,117