DOI: 10.1002/2016GL067964
论文题名: Sensitivity of the surface responses of an idealized AGCM to the timing of imposed ozone depletion-like polar stratospheric cooling
作者: Sheshadri A. ; Plumb R.A.
刊名: Geophysical Research Letters
ISSN: 0094-9274
EISSN: 1944-9005
出版年: 2016
卷: 43, 期: 5 起始页码: 2330
结束页码: 2336
语种: 英语
英文关键词: annular modes
; final warming
; ozone depletion
Scopus关键词: Earth atmosphere
; Orthogonal functions
; Ozone
; Ozone layer
; Annular modes
; Atmospheric general circulation models
; Chemistry-climate models
; Empirical Orthogonal Function
; Final warming
; Latitudinal structures
; Ozone depletion
; Stratospheric variability
; Climate models
; atmospheric general circulation model
; climate modeling
; cooling
; meteorology
; ozone depletion
; response analysis
; sensitivity analysis
; stratosphere
; warming
英文摘要: An idealized atmospheric general circulation model (AGCM) is used to investigate the sensitivity of model responses to the timing of imposed polar stratospheric cooling, intended to mimic the radiative effects of ozone depletion. The model exhibits circulation responses to springtime cooling that qualitatively match both observations and the responses of comprehensive chemistry climate models. The model's surface response is sensitive to the timing of the cooling, with the onset becoming delayed with later cooling, but with the termination occurring at similar times, suggesting that the meteorology plays an important role. The model's responses do not match the latitudinal structure of the leading annular mode; rather, the response described by the second empirical orthogonal function plays a substantial role, in addition to the first. It is suggested that the imposed cooling, when it delays the final warming, results in an extended period of lower stratospheric variability, which could be an important factor in producing realistic surface responses. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977969480&doi=10.1002%2f2016GL067964&partnerID=40&md5=28695764211fcb226f3cfe84fdc22062
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10237
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
Recommended Citation:
Sheshadri A.,Plumb R.A.. Sensitivity of the surface responses of an idealized AGCM to the timing of imposed ozone depletion-like polar stratospheric cooling[J]. Geophysical Research Letters,2016-01-01,43(5).