DOI: 10.1016/j.atmosenv.2015.09.074
Scopus记录号: 2-s2.0-84946223910
论文题名: Detection and attribution of regional CO2 concentration anomalies using surface observations
作者: Zhang F ; , Fukuyama Y ; , Wang Y ; , Fang S ; , Li P ; , Fan T ; , Zhou L ; , Liu X ; , Meinhardt F ; , Emiliani P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 123 起始页码: 88
结束页码: 101
语种: 英语
英文关键词: Carbon dioxide (CO2)
; Elevated and sequestered episodes
; Emissions and sinks
; Long-term trends
; Potential source contribution function (PSCF)
Scopus关键词: Estimation
; Detection and attributions
; Elevated and sequestered episodes
; Long-term trend
; Northern hemisphere
; Potential source contribution function
; Process-based ecosystem model
; Surface observation
; Temporal and spatial
; Carbon dioxide
; carbon dioxide
; atmospheric pollution
; carbon dioxide
; carbon emission
; carbon flux
; carbon sequestration
; concentration (composition)
; data set
; ecosystem modeling
; Northern Hemisphere
; observational method
; pollutant source
; spatiotemporal analysis
; Article
; Asia
; carbon footprint
; carbon sink
; China
; concentration (parameters)
; Europe
; exhaust gas
; Northern Hemisphere
; priority journal
; Central Europe
; China
; Japan
; Qinghai
; Waliguan Mountain
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: In this study, observed episodes of CO2 concentrations at eight Northern Hemisphere (NH) sites from 1993 to 2012 were analyzed. Five-day back trajectories were calculated for a potential source contribution function (PSCF) analysis. A normalized weight factor related to the occurrence of the episodes was applied to derive more reasonable CO2 elevations and sequestrations. Weighted elevated (δCO2(W_E)) and sequestered (δCO2(W_S)) CO2 episodes had large spatial discrepancies due to the differentiation of strength and patterns of CO2 emissions/sinks in different regions. The most significant enhancement in CO2 episodes was observed at Asian sites: δCO2(W_E) increased by approximately 56% at an annual rate of ~4% yr-1 from 1995 to 2010 at Waliguan (WLG) and by approximately 39% (~3% yr-1) from 1997 to 2012 at Yonagunijima (YON). According to the PSCF analysis, these increases are largely attributed to the rapid increase in emissions in China. However, δCO2(W_S) was also enhanced by 34.4% with a growth rate of 2.3% yr-1 at WLG from 1995 to 2010 and ~26.2% (1.7% yr-1) at YON from 1997 to 2012. Both δCO2(W_E) and δCO2(W_S) showed decreasing or relatively flat trends at Monte Cimone and Schauinsland, indicating reductions in emissions and sinks in central Europe. The different intensities/trends in emissions and sinks observed at different sites in the NH show that estimating future CO2 levels is a complex problem. Atmospheric inverse and process-based ecosystem models should use more regional input data at high temporal and spatial resolutions for future carbon flux estimations. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81453
Appears in Collections: 气候变化事实与影响
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作者单位: College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; Joint Center for Global Change Studies, Beijing, China; Atmospheric Environment Division, Global Environment and Marine Department, Japan Meteorological Agency (JMA), Tokyo, Japan; Chinese Academy of Meteorological Sciences (CAMS), China Meteorological Administration (CMA), Beijing, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, China; Umweltbundesamt, Federal Environment Agency, Germany; Luft-Messnetz, Datenzentrale, Air Monitoring Network, Datacenter Paul-Ehrlich-Strasse 29, Langen, Germany; Centro Aeronautica Militare di Montagna CAMM, Monte Cimone Via delle Ville 40, Sestola, MO, Italy
Recommended Citation:
Zhang F,, Fukuyama Y,, Wang Y,et al. Detection and attribution of regional CO2 concentration anomalies using surface observations[J]. Atmospheric Environment,2015-01-01,123