气候变化领域集成服务门户(CCPortal): Will Climate Change Impact Polar NOx Produced by Energetic Particle Precipitation?

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DOI	10.1029/2020GL087041
	Will Climate Change Impact Polar NOx Produced by Energetic Particle Precipitation?
	Maliniemi V.; Marsh D.R.; Tyssøy H.N.; Smith-Johnsen C.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:9
英文摘要	Energetic electron precipitation (EEP) is an important source of polar nitrogen oxides (NOx) in the upper atmosphere. During winter, mesospheric NOx has a long chemical lifetime and is transported to the stratosphere by the mean meridional circulation. Climate change is expected to accelerate this circulation and therefore increase polar mesospheric descent rates. We investigate the Southern Hemispheric polar NOx distribution during the 21st century under a variety of future scenarios using simulations of the Whole Atmosphere Community Climate Model (WACCM). We simulate stronger polar mesospheric descent in all future scenarios that increase the atmospheric radiative forcing. Polar NOx in the upper stratosphere is significantly enhanced in two future scenarios with the largest increase in radiative forcing. This indicates that the ozone depleting NOx cycle will become more important in the future, especially if stratospheric chlorine species decline. Thus, EEP-related atmospheric effects may become more prominent in the future. ©2020. The Authors.
英文关键词	Atmospheric chemistry; Atmospheric radiation; Climate models; Magnetosphere; Nitrogen oxides; Atmospheric effects; Climate change impact; Energetic electron precipitation; Energetic particles; Meridional circulation; Radiative forcings; Whole atmosphere community climate models; Climate change; climate change; climate effect; meridional circulation; mesosphere; nitrogen oxides; polar meteorology; precipitation (climatology); radiative forcing; Southern Hemisphere; stratosphere; upper atmosphere
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/170382
作者单位	Birkeland Centre for Space Science, Department of Physics and Technology, University of Bergen, Bergen, Norway; National Center for Atmospheric Research, Boulder, CO, United States; Faculty of Engineering and Physical Sciences, University of Leeds, Leeds, United Kingdom
推荐引用方式 GB/T 7714	Maliniemi V.,Marsh D.R.,Tyssøy H.N.,et al. Will Climate Change Impact Polar NOx Produced by Energetic Particle Precipitation?[J],2020,47(9).
APA	Maliniemi V.,Marsh D.R.,Tyssøy H.N.,&Smith-Johnsen C..(2020).Will Climate Change Impact Polar NOx Produced by Energetic Particle Precipitation?.Geophysical Research Letters,47(9).
MLA	Maliniemi V.,et al."Will Climate Change Impact Polar NOx Produced by Energetic Particle Precipitation?".Geophysical Research Letters 47.9(2020).