DOI: 10.1002/2015GL065432
论文题名: Observational evidence of the influence of Antarctic stratospheric ozone variability on middle atmosphere dynamics
作者: Venkateswara Rao N. ; Espy P.J. ; Hibbins R.E. ; Fritts D.C. ; Kavanagh A.J.
刊名: Geophysical Research Letters
ISSN: 0094-8585
EISSN: 1944-8316
出版年: 2015
卷: 42, 期: 19 起始页码: 7853
结束页码: 7859
语种: 英语
英文关键词: MF radar
; MLT dynamics
; ozone variability
; PMC/PMSE
; stratosphere
Scopus关键词: Ionosphere
; Ozone layer
; Radar
; Upper atmosphere
; Antarctic ozone hole
; Mesospheric winds
; Middle atmosphere dynamics
; Ozone variability
; PMC/PMSE
; Polar mesospheric clouds
; Stratospheric analysis
; Stratospheric ozone
; Ozone
; atmospheric circulation
; atmospheric dynamics
; gravity wave
; heating
; mesosphere
; middle atmosphere
; ozone
; ozone depletion
; perturbation
; radar
; spatiotemporal analysis
; stratosphere
; thermal alteration
; wind forcing
; Adelaide Island
; Antarctica
; Rothera Point
; West Antarctica
英文摘要: Modeling results have suggested that the circulation of the stratosphere and mesosphere in spring is strongly affected by the perturbations in heating induced by the Antarctic ozone hole. Here using both mesospheric MF radar wind observations from Rothera Antarctica (67°S, 68°W) as well as stratospheric analysis data, we present observational evidence that the stratospheric and mesospheric wind strengths are highly anti-correlated, and show their largest variability in November. We find that these changes are related to the total amount of ozone loss that occurs during the Antarctic spring ozone hole and particularly with the ozone gradients that develop between 57.5°S and 77.5°S. The results show that with increasing ozone loss during spring, winter conditions in the stratosphere and mesosphere persist longer into the summer. These results are discussed in the light of observations of the onset and duration of the Antarctic polar mesospheric cloud season. Key Points Middle atmospheric winds show clear response to ozone variability in the Antarctic stratosphere Stratospheric thermal gradients and wind-filtering of gravity waves cause these changes Results show that the onset and duration of PMC/PMSE season can be affected by ozone recovery © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947025322&doi=10.1002%2f2015GL065432&partnerID=40&md5=61dc4366d9eaf6251244de3865e5cc0d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8201
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: National Atmospheric Research Laboratory, Gadanki, India
Recommended Citation:
Venkateswara Rao N.,Espy P.J.,Hibbins R.E.,et al. Observational evidence of the influence of Antarctic stratospheric ozone variability on middle atmosphere dynamics[J]. Geophysical Research Letters,2015-01-01,42(19).