气候变化领域集成服务门户(CCPortal): Large Enhancements in Southern Hemisphere Satellite-Observed Trace Gases Due to the 2019/2020 Australian Wildfires

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DOI	10.1029/2021JD034892
	Large Enhancements in Southern Hemisphere Satellite-Observed Trace Gases Due to the 2019/2020 Australian Wildfires
	Pope R.J.; Kerridge B.J.; Siddans R.; Latter B.G.; Chipperfield M.P.; Arnold S.R.; Ventress L.J.; Pimlott M.A.; Graham A.M.; Knappett D.S.; Rigby R.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:18
英文摘要	The 2019/2020 Australian wildfires emitted large quantities of atmospheric pollutant gases and aerosols. Using state-of-the-art near-real-time satellite measurements of tropospheric composition, we present an analysis of several emitted trace gases and their long-range transport, and compare to the previous (2018/2019) fire season. Observations of carbon monoxide (CO) show that fire emissions were so intense that the distinct Australian fire plume managed to circumnavigate the Southern Hemisphere (SH) within a few weeks, with eastward propagation over the South Pacific, South America, the South Atlantic, Africa, and the Indian Ocean. Elevated atmospheric methane levels were also detected in January 2020 fire plumes over the Pacific, defined using CO as a plume tracer, even though sampling was restricted spatially by aerosols and clouds. Observations also show significant enhancements of methanol (CH3OH) from the fires, where CH3OH:CO enhancement ratios increased within the aged plume downwind over the South Pacific indicating secondary in-plume CH3OH formation. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Australian fires; carbon monoxide; IASI; methane; methanol
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237015
作者单位	School of Earth and Environment, University of Leeds, Leeds, United Kingdom; National Centre for Earth Observation, University of Leeds, Leeds, United Kingdom; Remote Sensing Group, STFC Rutherford Appleton Laboratory, Chilton, United Kingdom; National Centre for Earth Observation, STFC Rutherford Appleton Laboratory, Chilton, United Kingdom; Centre for Environmental Modelling and Computation, University of Leeds, Leeds, United Kingdom
推荐引用方式 GB/T 7714	Pope R.J.,Kerridge B.J.,Siddans R.,et al. Large Enhancements in Southern Hemisphere Satellite-Observed Trace Gases Due to the 2019/2020 Australian Wildfires[J],2021,126(18).
APA	Pope R.J..,Kerridge B.J..,Siddans R..,Latter B.G..,Chipperfield M.P..,...&Rigby R..(2021).Large Enhancements in Southern Hemisphere Satellite-Observed Trace Gases Due to the 2019/2020 Australian Wildfires.Journal of Geophysical Research: Atmospheres,126(18).
MLA	Pope R.J.,et al."Large Enhancements in Southern Hemisphere Satellite-Observed Trace Gases Due to the 2019/2020 Australian Wildfires".Journal of Geophysical Research: Atmospheres 126.18(2021).