气候变化领域集成服务门户(CCPortal): Very short-lived halogens amplify ozone depletion trends in the tropical lower stratosphere

CCPortal

DOI	10.1038/s41558-023-01671-y
	Very short-lived halogens amplify ozone depletion trends in the tropical lower stratosphere
	Villamayor, Julian; Iglesias-Suarez, Fernando; Cuevas, Carlos A.; Fernandez, Rafael P.; Li, Qinyi; Abalos, Marta; Hossaini, Ryan; Chipperfield, Martyn P.; Kinnison, Douglas E.; Tilmes, Simone; Lamarque, Jean-Francois; Saiz-Lopez, Alfonso
发表日期	2023
ISSN	1758-678X
EISSN	1758-6798
起始页码	554
结束页码	+
卷号	13 期号:6
英文摘要	In contrast to the general stratospheric ozone recovery following international agreements, recent observations show an ongoing net ozone depletion in the tropical lower stratosphere (LS). This depletion is thought to be driven by dynamical transport accelerated by global warming, while chemical processes have been considered to be unimportant. Here we use a chemistry-climate model to demonstrate that halogenated ozone-depleting very short-lived substances (VSLS) chemistry may account for around a quarter of the observed tropical LS negative ozone trend in 1998-2018. VSLS sources include both natural and anthropogenic emissions. Future projections show the persistence of the currently unaccounted for contribution of VSLS to ozone loss throughout the twenty-first century in the tropical LS, the only region of the global stratosphere not projecting an ozone recovery by 2100. Our results show the need for mitigation strategies of anthropogenic VSLS emissions to preserve the present and future ozone layer in low latitudes. In contrast to the overall recovery of stratospheric ozone, ozone depletion in the tropical lower stratosphere has been ongoing over recent years. Here the authors show that currently unregulated halogenated ozone-depleting very short-lived substances play a key role in this ongoing depletion.
英文关键词	IODINE CHEMISTRY; ATMOSPHERIC CHEMISTRY; CLIMATE; BROMINE; EMISSIONS; BROMOFORM; IMPACTS; TROPOSPHERE; CONVECTION; TRANSPORT
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000995255800007
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282467
作者单位	Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Instituto de Quimica Fisica Rocasolano (IQFR); Helmholtz Association; German Aerospace Centre (DLR); Complutense University of Madrid; Lancaster University; University of Leeds; University of Leeds; National Center Atmospheric Research (NCAR) - USA; Hong Kong Polytechnic University
推荐引用方式 GB/T 7714	Villamayor, Julian,Iglesias-Suarez, Fernando,Cuevas, Carlos A.,et al. Very short-lived halogens amplify ozone depletion trends in the tropical lower stratosphere[J],2023,13(6).
APA	Villamayor, Julian.,Iglesias-Suarez, Fernando.,Cuevas, Carlos A..,Fernandez, Rafael P..,Li, Qinyi.,...&Saiz-Lopez, Alfonso.(2023).Very short-lived halogens amplify ozone depletion trends in the tropical lower stratosphere.Nature Climate Change,13(6).
MLA	Villamayor, Julian,et al."Very short-lived halogens amplify ozone depletion trends in the tropical lower stratosphere".Nature Climate Change 13.6(2023).