DOI: 10.1038/s41561-019-0507-3
论文题名: The influence of the stratospheric Quasi-Biennial Oscillation on trace gas levels at the Earth’s surface
作者: Ray E.A. ; Portmann R.W. ; Yu P. ; Daniel J. ; Montzka S.A. ; Dutton G.S. ; Hall B.D. ; Moore F.L. ; Rosenlof K.H.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2020
卷: 13, 期: 1 起始页码: 22
结束页码: 27
语种: 英语
英文关键词: annual variation
; atmospheric chemistry
; ozone
; ozone depletion
; quasi-biennial oscillation
; stratosphere
; trace gas
; troposphere
; zonal wind
英文摘要: The Quasi-Biennial Oscillation (QBO) of tropical zonal wind is one of the most important modes of interannual variability in the stratosphere. It is well established that the QBO influences the distribution of trace gases throughout the global stratosphere. What has not been clearly shown thus far is whether the stratospheric QBO has a consistent and significant impact on tropospheric trace gases. Here we clearly demonstrate that the effects of QBO variability in stratospheric transport and trace gas distributions regularly and persistently extend into the troposphere, which influences the interannual variability of long-lived trace gas mole fractions at the Earth’s surface. We show that the variability in the surface mole fractions on one- to five-year timescales is primarily driven by the QBO. The QBO influence on tropospheric constituent mole fractions arises from the modulation of the stratosphere to troposphere mass flux and is apparent in surface measurements, as well as throughout the stratosphere and troposphere in chemistry–climate model simulations of chlorofluorocarbon-11, chlorofluorocarbon-12 and nitrous oxide. The global total emissions estimated from measured changes in the global mean surface mole fractions of these ozone-depleting species, as well as other long-lived trace gases, will be improved by accurately accounting for the QBO-driven variability. © 2019, This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169661
Appears in Collections: 气候变化与战略
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作者单位: Chemical Sciences Division, Earth Systems Research Laboratory, NOAA, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Global Monitoring Division, Earth Systems Research Laboratory, NOAA, Boulder, CO, United States
Recommended Citation:
Ray E.A.,Portmann R.W.,Yu P.,et al. The influence of the stratospheric Quasi-Biennial Oscillation on trace gas levels at the Earth’s surface[J]. Nature Geoscience,2020-01-01,13(1)