气候变化领域集成服务门户(CCPortal): Substantial Increases in Eastern Amazon and Cerrado Biomass Burning-Sourced Tropospheric Ozone

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DOI	10.1029/2019GL084143
	Substantial Increases in Eastern Amazon and Cerrado Biomass Burning-Sourced Tropospheric Ozone
	Pope R.J.; Arnold S.R.; Chipperfield M.P.; Reddington C.L.S.; Butt E.W.; Keslake T.D.; Feng W.; Latter B.G.; Kerridge B.J.; Siddans R.; Rizzo L.; Artaxo P.; Sadiq M.; Tai A.P.K.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	The decline in Amazonian deforestation rates and biomass burning activity (2001–2012) has been shown to reduce air pollutant emissions (e.g., aerosols) and improve regional air quality. However, in the Cerrado region (savannah grasslands in northeastern Brazil), satellite observations reveal increases in fire activity and tropospheric column nitrogen dioxide (an ozone precursor) during the burning season (August-October, 2005–2016), which have partially offset these air quality benefits. Simulations from a 3-D global chemistry transport model (CTM) capture this increase in NO2 with a surface increase of ~1 ppbv per decade. As there are limited long-term observational tropospheric ozone records, we utilize the well-evaluated CTM to investigate changes in ozone. Here, the CTM suggests that Cerrado region surface ozone is increasing by ~10 ppbv per decade. If left unmitigated, these positive fire-sourced ozone trends will substantially increase the regional health risks and impacts from expected future enhancements in South American biomass burning activity under climate change. ©2019. American Geophysical Union. All Rights Reserved.
英文关键词	Air quality; Biomass; Climate change; Deforestation; Health risks; Nitrogen oxides; Troposphere; Biomass-burning; Burned areas; Earth observations; Tropospheric columns; Tropospheric ozone; Ozone; air quality; atmospheric pollution; biomass burning; cerrado; climate change; deforestation; EOS; grassland; human activity; ozone; troposphere; Amazonia; Brazil
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170783
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; National Centre for Atmospheric Sciences, University of Leeds, Leeds, United Kingdom; Remote Sensing Group, STFC Rutherford Appleton Laboratory, Chilton, United Kingdom; Department of Environmental Sciences, Universidade Federal de Sao Paulo, Diadema, Brazil; Department of Applied Physics, Institute of Physics, University of Sao Paulo, Brazil; Earth System Science Programme, Faculty of Science, and Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Hong Kong; State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong
推荐引用方式 GB/T 7714	Pope R.J.,Arnold S.R.,Chipperfield M.P.,et al. Substantial Increases in Eastern Amazon and Cerrado Biomass Burning-Sourced Tropospheric Ozone[J],2020,47(3).
APA	Pope R.J..,Arnold S.R..,Chipperfield M.P..,Reddington C.L.S..,Butt E.W..,...&Tai A.P.K..(2020).Substantial Increases in Eastern Amazon and Cerrado Biomass Burning-Sourced Tropospheric Ozone.Geophysical Research Letters,47(3).
MLA	Pope R.J.,et al."Substantial Increases in Eastern Amazon and Cerrado Biomass Burning-Sourced Tropospheric Ozone".Geophysical Research Letters 47.3(2020).