globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2016JD025925
论文题名:
Emission factors of trace gases and particles from tropical savanna fires in Australia
作者: Desservettaz M.; Paton-Walsh C.; Griffith D.W.T.; Kettlewell G.; Keywood M.D.; Vanderschoot M.V.; Ward J.; Mallet M.D.; Milic A.; Miljevic B.; Ristovski Z.D.; Howard D.; Edwards G.C.; Atkinson B.
刊名: Journal of Geophysical Research: Atmospheres
出版年: 2017
卷: 122, 期:11
起始页码: 6059
结束页码: 6074
语种: 英语
英文关键词: aerosols ; emission factors ; emissions ; gases ; savanna ; wildfires
英文摘要: Savanna fires contribute significantly to global aerosol loading and hence to the Earth's radiative budget. Modeling of the climatic impact of these aerosols is made difficult due to a lack of knowledge of their size distribution. Australia is the third largest source of global carbon emissions from biomass burning, with emissions dominated by tropical savanna fires. Despite this, only a few previous studies have reported emission factors of trace gases from this important ecosystem and there are no previous published emission factors for the aerosol properties reported here for Australian savanna fires. In June 2014, the SAFIRED campaign (Savanna Fires in the Early Dry season) took place in the Northern Territory of Australia, with the purpose of investigating emissions and aging of aerosols from Australian savanna fires. This paper presents observed enhancement ratios and inferred emission factors of trace gases (CO2, CO, CH4, N2O, and gaseous elemental mercury), particles over different size modes (Aitken and accumulation), and speciated aerosols components (organics, sulfate, nitrate, ammonium, and chloride). Nine smoke events were identified from the data using large enhancements in CO and/or aerosol data to indicate biomass burning event. The results reported in this paper include the first emission factors for Aitken and accumulation mode aerosols from savanna fires, providing useful size information to enable better modeling of the climatic impact of this important source of global aerosols. ©2017. American Geophysical Union. All Rights Reserved.
资助项目: "We thank CSIRO for organizing, facilitating, and funding the majority of this campaign. M. Desservettaz is also grateful for the CSIRO OCE Postgraduate Scholarship which facilitated his involvement in the campaign. Supporting information from the in situ FTIR, the SMPS, and the AMS instruments are included as three csv files ; any additional data may be obtained from the corresponding authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62658
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Centre for Atmospheric Chemistry, University of Wollongong, Wollongong, NSW, Australia; CSIRO, Ocean and Atmosphere, Aspendale, VIC, Australia; School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, QLD, Australia; Department of Environmental Sciences, Macquarie University, North Ryde, NSW, Australia; Bureau of Meteorology, Darwin, NT, Australia

Recommended Citation:
Desservettaz M.,Paton-Walsh C.,Griffith D.W.T.,et al. Emission factors of trace gases and particles from tropical savanna fires in Australia[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(11)
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