DOI: 10.1016/j.atmosenv.2014.02.060
Scopus记录号: 2-s2.0-84895961981
论文题名: Characteristics of atmospheric carbon monoxide at a high-mountain background station in East Asia
作者: Ou-Yang C ; -F ; , Lin N ; -H ; , Lin C ; -C ; , Wang S ; -H ; , Sheu G ; -R ; , Lee C ; -T ; , Schnell R ; C ; , Lang P ; M ; , Kawasato T ; , Wang J ; -L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 89 起始页码: 613
结束页码: 622
语种: 英语
英文关键词: Background values
; Biomass burning
; CO
; Lulin atmospheric background station (LABS)
Scopus关键词: Carbon monoxide
; Cluster analysis
; Cobalt
; Atmospheric carbon monoxide
; Background value
; Backward trajectory
; Biomass-burning
; Long range transport
; Lulin atmospheric background station (LABS)
; Non-dispersive infrared
; Seasonal patterns
; Laboratories
; carbon monoxide
; air mass
; atmospheric pollution
; biomass burning
; carbon monoxide
; cluster analysis
; diurnal variation
; elevation
; long range transport
; mountain region
; NOAA satellite
; spectrometer
; trajectory
; weather station
; westerly
; article
; atmospheric deposition
; biomass
; burn
; circadian rhythm
; cluster analysis
; priority journal
; seasonal variation
; Southeast Asia
; spring
; summer
; winter
; Mount Lulin
; Taiwan
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: Atmospheric CO were monitored at the Lulin Atmospheric Background Station (LABS) with an elevation of 2862m AMSL from April 2006 to April 2011 by the in-situ non-dispersive infrared (NDIR) spectrometer and weekly flask sample collections via collaboration with NOAA/ESRL/GMD. In general very coherent results were observed between the two datasets, despite a slight difference between the two. A distinct seasonal pattern of CO was noticed at the LABS with a springtime maximum and a summertime minimum, which was predominately shaped by the long-range transport of biomass burning air masses from Southeast Asia and oceanic influences from the Pacific, respectively. Diurnal cycles were also observed at the LABS, with a maximum in late afternoon and a minimum in early morning. The daytime CO maximum was most likely caused by the up-slope transport of lower elevation air. After filtering out the possibly polluted data points from the entire dataset with a mathematic procedure, the mean background CO level at the LABS was assessed as 129.3±46.6ppb, compared to 149.0±72.2ppb prior to the filtering.The cluster analysis of the backward trajectories revealed six possible source regions, which shows that air masses originating from the Westerly Wind Zone were dominated in spring and winter resulting in higher CO concentrations. As a contrast, the oceanic influences from the Pacific were found mostly in summer, contributing a lower seasonal CO concentration throughout a year. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81087
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Chemistry, National Central University, Chungli 320, Taiwan; Department of Atmospheric Sciences, National Central University, Chungli, Taiwan; Graduate Institute of Environmental Engineering, National Central University, Chungli, Taiwan; Global Monitoring Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, United States; GHG Monitoring Section, Atmospheric Environment Division, Global Environment and Marine Department, Japan Meteorological Agency, Tokyo, Japan
Recommended Citation:
Ou-Yang C,-F,, Lin N,et al. Characteristics of atmospheric carbon monoxide at a high-mountain background station in East Asia[J]. Atmospheric Environment,2014-01-01,89