气候变化领域集成服务门户(CCPortal): Polar Stratospheric Clouds: Satellite Observations, Processes, and Role in Ozone Depletion

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DOI	10.1029/2020RG000702
	Polar Stratospheric Clouds: Satellite Observations, Processes, and Role in Ozone Depletion
	Tritscher I.; Pitts M.C.; Poole L.R.; Alexander S.P.; Cairo F.; Chipperfield M.P.; Grooß J.-U.; Höpfner M.; Lambert A.; Luo B.; Molleker S.; Orr A.; Salawitch R.; Snels M.; Spang R.; Woiwode W.; Peter T.
发表日期	2021
ISSN	87551209
卷号	59 期号:2
英文摘要	Polar stratospheric clouds (PSCs) play important roles in stratospheric ozone depletion during winter and spring at high latitudes (e.g., the Antarctic ozone hole). PSC particles provide sites for heterogeneous reactions that convert stable chlorine reservoir species to radicals that destroy ozone catalytically. PSCs also prolong ozone depletion by delaying chlorine deactivation through the removal of gas-phase HNO3 and H2O by sedimentation of large nitric acid trihydrate (NAT) and ice particles. Contemporary observations by the spaceborne instruments Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), Microwave Limb Sounder (MLS), and Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) have provided an unprecedented polar vortex-wide climatological view of PSC occurrence and composition in both hemispheres. These data have spurred advances in our understanding of PSC formation and related dynamical processes, especially the firm evidence of widespread heterogeneous nucleation of both NAT and ice PSC particles, perhaps on nuclei of meteoritic origin. Heterogeneous chlorine activation appears to be well understood. Reaction coefficients on/in liquid droplets have been measured accurately, and while uncertainties remain for reactions on solid NAT and ice particles, they are considered relatively unimportant since under most conditions chlorine activation occurs on/in liquid droplets. There have been notable advances in the ability of chemical transport and chemistry-climate models to reproduce PSC temporal/spatial distributions and composition observed from space. Continued spaceborne PSC observations will facilitate further improvements in the representation of PSC processes in global models and enable more accurate projections of the evolution of polar ozone and the global ozone layer as climate changes. © 2021. The Authors. Reviews of Geophysics published by Wiley Periodicals LLC on behalf of American Geophysical Union, This article has been contributed to by US Government employees and their work is in the public domain in the USA.
英文关键词	ozone depletion; PSCs
语种	英语
来源期刊	Reviews of Geophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/188066
作者单位	Forschungszentrum Jülich, Institut für Energie und Klimaforschung, Stratosphäre, IEK-7, Jülich, Germany; NASA Langley Research Center, Hampton, VA, United States; Science Systems and Applications, Inc., Hampton, VA, United States; Australian Antarctic Division, Kingston, TAS, Australia; Istituto di Scienze dell'Atmosfera e del Clima, Rome, Italy; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Karlsruhe, Germany; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; ETH Zurich, Institute for Atmospheric and Climate Science, Zurich, Switzerland; Max Planck Institute for Chemistry, Mainz, Germany; British Antarctic Survey, NERC, Cambridge, United Kingdom; University of Maryland, College ParkMD, United States
推荐引用方式 GB/T 7714	Tritscher I.,Pitts M.C.,Poole L.R.,et al. Polar Stratospheric Clouds: Satellite Observations, Processes, and Role in Ozone Depletion[J],2021,59(2).
APA	Tritscher I..,Pitts M.C..,Poole L.R..,Alexander S.P..,Cairo F..,...&Peter T..(2021).Polar Stratospheric Clouds: Satellite Observations, Processes, and Role in Ozone Depletion.Reviews of Geophysics,59(2).
MLA	Tritscher I.,et al."Polar Stratospheric Clouds: Satellite Observations, Processes, and Role in Ozone Depletion".Reviews of Geophysics 59.2(2021).