气候变化领域集成服务门户(CCPortal): Extreme Ozone Loss Following Nuclear War Results in Enhanced Surface Ultraviolet Radiation

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DOI	10.1029/2021JD035079
	Extreme Ozone Loss Following Nuclear War Results in Enhanced Surface Ultraviolet Radiation
	Bardeen C.G.; Kinnison D.E.; Toon O.B.; Mills M.J.; Vitt F.; Xia L.; Jägermeyr J.; Lovenduski N.S.; Scherrer K.J.N.; Clyne M.; Robock A.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:18
英文摘要	For the first time, we use a modern climate model with interactive chemistry including the effects of aerosols on photolysis rates to simulate the consequences of regional and global scale nuclear wars (injecting 5 and 150 Tg of soot respectively) for the ozone layer and surface ultraviolet (UV) light. For a global nuclear war, heating in the stratosphere, reduced photolysis, and an increase in catalytic loss from the HOx cycle cause a 15 year-long reduction in the ozone column, with a peak loss of 75% globally and 65% in the tropics. This is larger than predictions from the 1980s, which assumed large injections of nitrogen oxides (NOx), but did not include the effects of smoke. NOx from the fireball and the fires provide a small (5%) increase to the global average ozone loss for the first few years. Initially, soot would shield the surface from UV-B, but UV Index values would become extreme: greater than 35 in the tropics for 4 years, and greater than 45 during the summer in the southern polar regions for 3 years. For a regional war, global column ozone would be reduced by 25% with recovery taking 12 years. This is similar to previous simulations, but with a faster recovery time due to a shorter lifetime for soot in our simulations. In-line photolysis provides process specific action spectra enabling future integration with biogeochemistry models and allows output that quantifies the potential health impacts from changes in surface UV for this and other larger aerosol injections. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	nuclear war; ozone; smoke; ultraviolet radiation
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/237014
作者单位	National Center for Atmospheric Research, Boulder, CO, United States; Department of Atmospheric and Ocean Sciences, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States; Department of Environmental Sciences, Rutgers University, New Brunswick, NJ, United States; NASA Goddard Institute for Space Studies, New York, NY, United States; Center for Climate Systems Research, Columbia University, New York, NY, United States; Potsdam Institute for Climate Impact Research (PIK), Potsdam, Germany; Department of Atmospheric and Oceanic Sciences, Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, United States; Institut de Ciència i Tecnologia Ambientals (ICTA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
推荐引用方式 GB/T 7714	Bardeen C.G.,Kinnison D.E.,Toon O.B.,et al. Extreme Ozone Loss Following Nuclear War Results in Enhanced Surface Ultraviolet Radiation[J],2021,126(18).
APA	Bardeen C.G..,Kinnison D.E..,Toon O.B..,Mills M.J..,Vitt F..,...&Robock A..(2021).Extreme Ozone Loss Following Nuclear War Results in Enhanced Surface Ultraviolet Radiation.Journal of Geophysical Research: Atmospheres,126(18).
MLA	Bardeen C.G.,et al."Extreme Ozone Loss Following Nuclear War Results in Enhanced Surface Ultraviolet Radiation".Journal of Geophysical Research: Atmospheres 126.18(2021).