globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2014.03.005
Scopus记录号: 2-s2.0-84897082947
论文题名:
Long-range transport of Siberian wildfire smoke to British Columbia: Lidar observations and air quality impacts
作者: Cottle P; , Strawbridge K; , McKendry I
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 90
起始页码: 71
结束页码: 77
语种: 英语
英文关键词: 2012 ; Aerosols ; Air quality ; Lidar ; Long range transport ; Smoke
Scopus关键词: Aerosols ; Air quality ; Backscattering ; Boundary layers ; Fires ; Optical radar ; Troposphere ; 2012 ; Air quality impacts ; Backscatter ratio ; Depolarization ratio ; Lidar observation ; Long range transport ; Satellite observations ; Total suspended particulates ; Smoke ; aerosol ; air quality ; backscatter ; boundary layer ; dry season ; high temperature ; lidar ; long range transport ; satellite data ; smoke ; suspended particulate matter ; wildfire ; aerosol ; air monitor ; air quality ; article ; boundary layer ; Canada ; canadian operational research aerosol lidar network ; depolarization ; environmental impact ; fire ; lidar system ; North America ; priority journal ; remote sensing ; smoke ; surface property ; suspended particulate matter ; temperature ; troposphere ; British Columbia ; Canada ; Fraser Valley ; Siberia ; Vancouver [British Columbia]
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 July and August 2012, a combination of dry weather and record-breaking temperatures led to an unusually intense wildfire season in Boreal Asia. Based on model results and satellite observations it is thought that a portion of the smoke output from these fires was carried across the Pacific to North America in quantities sufficient to adversely affect air quality in southwestern British Columbia. CORALNet lidar observations taken in Vancouver during these months revealed aerosol layers in the free troposphere followed by relative increases in backscatter ratio within the boundary layer peaking on July 7-10 and again on August 9-15. Depolarization ratios in the boundary layer and for layers in the free troposphere during this period were consistent with high concentrations of smoke. Throughout July and August, Total Suspended Particulate (TSP) monitors throughout the lower Fraser Valley of British Columbia revealed several days with a significant increase in PM2.5 concentrations and nine of the twenty highest daily average PM2.5 concentrations of 2012 coincide with increases in backscatter in the lidar observations indicating that these events were accompanied by a substantial increase in particulate concentrations near the surface. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80837
Appears in Collections:气候变化事实与影响

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作者单位: Department of Earth, Ocean and Atmospheric Sciences, The University of British Columbia, 1984 West Mall, Vancouver, BC, Canada; Air Quality Processes Research Section, Environment Canada, Toronto, ON, Canada; Department of Geography, The University of British Columbia, Vancouver, BC, Canada

Recommended Citation:
Cottle P,, Strawbridge K,, McKendry I. Long-range transport of Siberian wildfire smoke to British Columbia: Lidar observations and air quality impacts[J]. Atmospheric Environment,2014-01-01,90
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