DOI: 10.1016/j.atmosenv.2016.11.011
Scopus记录号: 2-s2.0-84995794378
论文题名: Aerosol optical depths and their contributing sources in Taiwan
作者: Chan K ; L ; , Chan K ; L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 148 起始页码: 364
结束页码: 375
语种: 英语
英文关键词: AERONET
; Aerosol optical depth
; GEOS-Chem
; Long range transport
; MODIS
; Source contributions
Scopus关键词: Aerosols
; Atmospheric aerosols
; Carbon
; Dust
; Fog
; Image reconstruction
; Optical properties
; Photometers
; Photometry
; Radiometers
; Remote sensing
; Satellite imagery
; Sulfur compounds
; Transport properties
; AERONET
; Aerosol optical depths
; GEOS-Chem
; Long range transport
; MODIS
; Source contributions
; Organic carbon
; black carbon
; fossil fuel
; nitrate
; organic carbon
; sodium chloride
; sulfate
; AERONET
; aerosol
; anthropogenic effect
; atmospheric modeling
; biomass burning
; black carbon
; global change
; long range transport
; MODIS
; optical depth
; photometer
; pollutant source
; remote sensing
; satellite altimetry
; aerosol
; Article
; biomass
; combustion
; dust
; measurement
; model
; optical depth
; photometer
; priority journal
; remote sensing
; simulation
; spatial analysis
; sun
; Taiwan
; Southeast Asia
; Taipei
; 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: In this paper, we present a quantitative investigation of the contributions of different aerosols to the aerosol optical depths (AODs) in Taiwan using a global chemical transport model (GEOS-Chem) and remote sensing measurements. The study focus is on the period from June 2012 to October 2013. Five different types of aerosols are investigated: sea salt, dust, sulfate, organic carbon and black carbon. Three of these aerosols, namely sulfate, organic carbon and black carbon, have significant anthropogenic sources. Model simulation results were compared with both ground based sun photometer measurements and MODerate resolution Imaging Spectroradiometer (MODIS) satellite observations. The model data shows good agreement with satellite observations (R = 0.72) and moderate correlation with sun photometer measurements (R = 0.52). Simulation results show the anthropogenic aerosols contribute ∼65% to the total AOD in Taipei, while natural originated aerosols only show a minor impact (∼35%). Among all the aerosols, sulfate is the dominating species, contributing 62.4% to the annual average total AOD. Organic carbon and black carbons respectively contribute 7.3% and 1.5% to the annual averaged total AOD. The annual average contributions of sea salt and dust aerosols to the total AOD are 26.4% and 2.4%, respectively. A sensitivity study was performed to identify the contributions of anthropogenic aerosol sources in each region to the AODs in Taipei. North-East Asia was identified as the major contributing source region of anthropogenic aerosols to Taipei, accounting for more than 50% of total sulfate, 32% of total organic carbon and 51% of total black carbon aerosols. South-East Asia is the second largest contributing source region, contributing 35%, 24% and 34% of total sulfate, organic carbon and black carbon aerosols, respectively. The aerosols from continents other than Asia only show minor impacts to the aerosol load in Taipei. In addition, a case study of a biomass burning episode in South-East Asia during 2013 was investigated. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82375
Appears in Collections: 气候变化事实与影响
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作者单位: Meteorological Institute, Ludwig-Maximilians-Universität München, Munich, Germany; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan
Recommended Citation:
Chan K,L,, Chan K,et al. Aerosol optical depths and their contributing sources in Taiwan[J]. Atmospheric Environment,2017-01-01,148