气候变化领域集成服务门户(CCPortal): An Expanded Definition of the Odd Oxygen Family for Tropospheric Ozone Budgets: Implications for Ozone Lifetime and Stratospheric Influence

CCPortal

DOI	10.1029/2019GL084486
	An Expanded Definition of the Odd Oxygen Family for Tropospheric Ozone Budgets: Implications for Ozone Lifetime and Stratospheric Influence
	Bates K.H.; Jacob D.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:4
英文摘要	Models of tropospheric ozone commonly define an “odd oxygen” family (Ox), comprising ozone and species with which it rapidly cycles, in order to compute tropospheric ozone budgets and lifetimes. A major Ox loss is the O(1D) + H2O → 2OH reaction, but this may not be an actual loss because the resulting hydrogen oxide (HOx) radicals regenerate ozone in the presence of nitrogen oxides. Here we introduce an expanded odd oxygen family, Oy≡ Ox + Oz, to include both Ox and an additional subfamily, Oz, consisting of HOx and its reservoirs. We incorporate this new accounting into the GEOS-Chem model, revealing a longer global mean ozone lifetime (73 days vs. 24 days) and greater stratospheric contribution (26% vs. 9%) under present-day conditions than derived from the standard Ox budget. Tracking the Oy budget may provide better understanding of the discrepancies between global models in their computations of ozone sources and sinks. ©2019. The Authors.
英文关键词	Atmospheric chemistry; Atmospheric movements; Budget control; Nitrogen oxides; Troposphere; Actual loss; Chemical transport models; Global models; Stratosphere-troposphere exchange; Tropospheric ozone; Ozone; atmospheric chemistry; EOS; hydrogen; hydroxyl radical; nitrogen oxides; ozone; stratosphere-troposphere interaction
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/170708
作者单位	School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Bates K.H.,Jacob D.J.. An Expanded Definition of the Odd Oxygen Family for Tropospheric Ozone Budgets: Implications for Ozone Lifetime and Stratospheric Influence[J],2020,47(4).
APA	Bates K.H.,&Jacob D.J..(2020).An Expanded Definition of the Odd Oxygen Family for Tropospheric Ozone Budgets: Implications for Ozone Lifetime and Stratospheric Influence.Geophysical Research Letters,47(4).
MLA	Bates K.H.,et al."An Expanded Definition of the Odd Oxygen Family for Tropospheric Ozone Budgets: Implications for Ozone Lifetime and Stratospheric Influence".Geophysical Research Letters 47.4(2020).