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DOI	10.5194/acp-19-9485-2019
	Reactive nitrogen (NOy) and ozone responses to energetic electron precipitation during Southern Hemisphere winter
	Arsenovic P.; Damiani A.; Rozanov E.; Funke B.; Stenke A.; Peter T.
发表日期	2019
ISSN	16807316
起始页码	9485
结束页码	9494
卷号	19 期号:14
英文摘要	nergetic particle precipitation (EPP) affects the chemistry of the polar middle atmosphere by producing reactive nitrogen (NOy) and hydrogen (HOx) species, which then catalytically destroy ozone. Recently, there have been major advances in constraining these particle impacts through a parametrization of NOy based on high-quality observations. Here we investigate the effects of low (auroral) and middle (radiation belt) energy range electrons, separately and in combination, on reactive nitrogen and hydrogen species as well as on ozone during Southern Hemisphere winters from 2002 to 2010 using the SOCOL3-MPIOM chemistry-climate model. Our results show that, in the absence of solar proton events, low-energy electrons produce the majority of NOy in the polar mesosphere and stratosphere. In the polar vortex, NOy subsides and affects ozone at lower altitudes, down to 10 hPa. Comparing a year with high electron precipitation with a quiescent period, we found large ozone depletion in the mesosphere; as the anomaly propagates downward, 15 % less ozone is found in the stratosphere during winter, which is confirmed by satellite observations. Only with both lowand middle-energy electrons does our model reproduce the observed stratospheric ozone anomaly. © 2019 Author(s).
语种	英语
scopus关键词	atmospheric chemistry; electron; hydrogen; mesosphere; nitrogen oxides; ozone depletion; precipitation (climatology); Southern Hemisphere; stratosphere; winter
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144252
作者单位	Institute for Atmospheric and Climate Science, ETH, Zürich, Switzerland; Center for Environmental Remote Sensing (CEReS), Chiba University, Chiba, Japan; Physikalisch-Meteorologisches Observatorium Davos, World Radiation Center, Davos, Switzerland; Pushkov Institute of Terrestrial Magnetism Ionosphere, and Radio Wave Propagation, Russian Academy of Sciences, Kaliningrad, Russian Federation; Instituto Astrofísica Andalucía, Consejo Superior de Investigaciones Científicas, Granada, Spain; Air Pollution/Environmental Technology, Empa, Dübendorf, Switzerland
推荐引用方式 GB/T 7714	Arsenovic P.,Damiani A.,Rozanov E.,et al. Reactive nitrogen (NOy) and ozone responses to energetic electron precipitation during Southern Hemisphere winter[J],2019,19(14).
APA	Arsenovic P.,Damiani A.,Rozanov E.,Funke B.,Stenke A.,&Peter T..(2019).Reactive nitrogen (NOy) and ozone responses to energetic electron precipitation during Southern Hemisphere winter.Atmospheric Chemistry and Physics,19(14).
MLA	Arsenovic P.,et al."Reactive nitrogen (NOy) and ozone responses to energetic electron precipitation during Southern Hemisphere winter".Atmospheric Chemistry and Physics 19.14(2019).