气候变化领域集成服务门户(CCPortal): The Role of Natural Halogens in Global Tropospheric Ozone Chemistry and Budget Under Different 21st Century Climate Scenarios

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DOI	10.1029/2021JD034859
	The Role of Natural Halogens in Global Tropospheric Ozone Chemistry and Budget Under Different 21st Century Climate Scenarios
	Badia A.; Iglesias-Suarez F.; Fernandez R.P.; Cuevas C.A.; Kinnison D.E.; Lamarque J.-F.; Griffiths P.T.; Tarasick D.W.; Liu J.; Saiz-Lopez A.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:20
英文摘要	Tropospheric ozone ((Formula presented.)) is an important greenhouse gas and a surface pollutant. The future evolution of (Formula presented.) abundances and chemical processing are uncertain due to a changing climate, socioeconomic developments, and missing chemistry in global models. Here, we use an Earth System Model with natural halogen chemistry to investigate the changes in the (Formula presented.) budget over the 21st century following Representative Concentration Pathway (RCP)6.0 and RCP8.5 climate scenarios. Our results indicate that the global tropospheric (Formula presented.) net chemical change (NCC, chemical gross production minus destruction) will decrease (Formula presented.), notwithstanding increasing or decreasing trends in ozone production and loss. However, a wide range of surface NCC variations (from −60 (Formula presented.) to 150 (Formula presented.)) are projected over polluted regions with stringent abatements in (Formula presented.) precursor emissions. Water vapor and iodine are found to be key drivers of future tropospheric (Formula presented.) destruction, while the largest changes in (Formula presented.) production are determined by the future evolution of peroxy radicals. We show that natural halogens, currently not considered in climate models, significantly impact on the present-day and future global (Formula presented.) burden reducing (Formula presented.) 30–35 Tg (11–15 (Formula presented.)) of tropospheric ozone throughout the 21st century regardless of the RCP scenario considered. This highlights the importance of including natural halogen chemistry in climate model projections of future tropospheric ozone. © 2021. The Authors.
英文关键词	chemistry; climate; emission; halogens; ozone
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/236938
作者单位	Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, CSIC, Madrid, Spain; Now at Institute of Environmental Science and Technology (ICTA), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain; Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Weßling, Germany; Institute for Interdisciplinary Science (ICB), National Research Council (CONICET), FCEN-UNCuyo, Mendoza, Argentina; Atmospheric Chemistry, Observations, and Modeling Laboratory, NCAR, Boulder, CO, United States; Climate and Global Dynamics Laboratory, NCAR, Boulder, CO, United States; Centre for Atmospheric Science, Cambridge University, Cambridge, United Kingdom; National Centre for Atmospheric Science, Cambridge University, Cambridge, United Kingdom; Air Quality Research Division, Environment and Climate Change Canada, Downsview, ON, Canada; Department of Geography and Planning, University of Toronto, Toronto, ON, Canada
推荐引用方式 GB/T 7714	Badia A.,Iglesias-Suarez F.,Fernandez R.P.,et al. The Role of Natural Halogens in Global Tropospheric Ozone Chemistry and Budget Under Different 21st Century Climate Scenarios[J],2021,126(20).
APA	Badia A..,Iglesias-Suarez F..,Fernandez R.P..,Cuevas C.A..,Kinnison D.E..,...&Saiz-Lopez A..(2021).The Role of Natural Halogens in Global Tropospheric Ozone Chemistry and Budget Under Different 21st Century Climate Scenarios.Journal of Geophysical Research: Atmospheres,126(20).
MLA	Badia A.,et al."The Role of Natural Halogens in Global Tropospheric Ozone Chemistry and Budget Under Different 21st Century Climate Scenarios".Journal of Geophysical Research: Atmospheres 126.20(2021).