气候变化领域集成服务门户(CCPortal): Stratospheric Fluorine as a Tracer of Circulation Changes: Comparison Between Infrared Remote-Sensing Observations and Simulations With Five Modern Reanalyses

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DOI	10.1029/2021JD034995
	Stratospheric Fluorine as a Tracer of Circulation Changes: Comparison Between Infrared Remote-Sensing Observations and Simulations With Five Modern Reanalyses
	Prignon M.; Chabrillat S.; Friedrich M.; Smale D.; Strahan S.E.; Bernath P.F.; Chipperfield M.P.; Dhomse S.S.; Feng W.; Minganti D.; Servais C.; Mahieu E.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:19
英文摘要	Using multidecadal time series of ground-based and satellite Fourier transform infrared measurements of inorganic fluorine (i.e., total fluorine resident in stratospheric fluorine reservoirs), we investigate stratospheric circulation changes over the past 20 years. The representation of these changes in five modern reanalyses is further analyzed through chemical-transport model (CTM) simulations. From the observations but also from all reanalyses, we show that the inorganic fluorine is accumulating less rapidly in the Southern Hemisphere than in the Northern Hemisphere during the 21st century. Comparisons with a study evaluating the age-of-air of these reanalyses using the same CTM allow us to link this hemispheric asymmetry to changes in the Brewer-Dobson circulation (BDC), with the age-of-air of the Southern Hemisphere getting younger relative to that of the Northern Hemisphere. Large differences in simulated total columns and absolute trend values are, nevertheless, depicted between our simulations driven by the five reanalyses. Superimposed on this multidecadal change, we, furthermore, confirm a 5–7-year variability of the BDC that was first described in a recent study analyzing long-term time series of hydrogen chloride (HCl) and nitric acid (HNO3). It is important to stress that our results, based on observations and meteorological reanalyses, are in contrast with the projections of chemistry-climate models in response to the coupled increase of greenhouse gases and decrease of ozone-depleting substances, calling for further investigations and the continuation of long-term observations. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Brewer-Dobson circulation; circulation changes; stratospheric transport; trends
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236964
作者单位	University of Liège, Institute of Astrophysics and Geophysics, UR SPHERES, Liège, Belgium; Royal Belgian Institute for Space Aeronomy, Brussels, Belgium; Department of Econometrics and Data Science, VU Amsterdam, Amsterdam, Netherlands; National Institute of Water and Atmospheric Research Ltd., Lauder, New Zealand; Universities Space Research Association, Columbia, MD, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA, United States; Department of Chemistry, University of Waterloo, Waterloo, ON, Canada; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; National Centre for Earth Observation, University of Leeds, Leeds, United Kingdom; National Centre for Atmospheric Science, University of Leeds, Leeds, United Kingdom; University of Liège, Institute of Astrophysics and Geophysics, STAR Institute, Liège, Belgium
推荐引用方式 GB/T 7714	Prignon M.,Chabrillat S.,Friedrich M.,et al. Stratospheric Fluorine as a Tracer of Circulation Changes: Comparison Between Infrared Remote-Sensing Observations and Simulations With Five Modern Reanalyses[J],2021,126(19).
APA	Prignon M..,Chabrillat S..,Friedrich M..,Smale D..,Strahan S.E..,...&Mahieu E..(2021).Stratospheric Fluorine as a Tracer of Circulation Changes: Comparison Between Infrared Remote-Sensing Observations and Simulations With Five Modern Reanalyses.Journal of Geophysical Research: Atmospheres,126(19).
MLA	Prignon M.,et al."Stratospheric Fluorine as a Tracer of Circulation Changes: Comparison Between Infrared Remote-Sensing Observations and Simulations With Five Modern Reanalyses".Journal of Geophysical Research: Atmospheres 126.19(2021).