DOI: 10.1002/2015GL063759
论文题名: Modulation of Antarctic vortex composition by the quasi-biennial oscillation
作者: Strahan S.E. ; Oman L.D. ; Douglass A.R. ; Coy L.
刊名: Geophysical Research Letters
ISSN: 0094-9252
EISSN: 1944-8983
出版年: 2015
卷: 42, 期: 10 起始页码: 4216
结束页码: 4223
语种: 英语
英文关键词: Antarctic ozone
; quasi-biennial oscillation
; stratospheric chlorine
; stratospheric transport
Scopus关键词: Chlorine
; Microwave oscillators
; Nitrogen oxides
; Oscillators (mechanical)
; Ozone
; Ozone layer
; Antarctic vortex
; Lower stratosphere
; Microwave limb sounder
; Ozone depletion
; Quasi-biennial oscillation
; Southern Hemisphere
; Stratospheric transport
; Transport pathways
; Vortex flow
; atmospheric chemistry
; Aura (satellite)
; microwave limb sounder
; nitrogen oxides
; ozone
; quasi-biennial oscillation
; Southern Hemisphere
; stratosphere
; vortex
; Southern Ocean
英文摘要: Using a decade of Aura Microwave Limb Sounder observations, we show distinctly different N2 O distributions in Southern Hemisphere winter that depend on the phase of the quasi-biennial oscillation (QBO). Composites of the nitrous oxide (N2 O) anomalies calculated for westerly and easterly phases show that QBO-generated variability originating in the subtropical middle stratosphere fills the midlatitude surf zone by late winter. After the spring vortex breakup, the anomaly is transported to the Antarctic where it remains until the next vortex forms in fall. Trapped in the newly formed vortex, the anomaly descends in isolation through fall and winter, arriving in the Antarctic lower stratosphere in September - about 1 year after it formed. This transport pathway explains previously reported variability of N2 O and inorganic chlorine (Cly ) inside the Antarctic vortex and demonstrates that the middle stratosphere QBO affects ozone depletion by modulating Antarctic Cly . ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931570755&doi=10.1002%2f2015GL063759&partnerID=40&md5=8b2e200c512208d71bcdbe167f748c13
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8868
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Universities Space Research Association, Columbia, MD, United States
Recommended Citation:
Strahan S.E.,Oman L.D.,Douglass A.R.,et al. Modulation of Antarctic vortex composition by the quasi-biennial oscillation[J]. Geophysical Research Letters,2015-01-01,42(10).