Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0781.1 |
Arctic Stratosphere Dynamical Response to Global Warming | |
Karpechko, Alexey Yu1; Manzini, Elisa2 | |
2017-09-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:17 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland; Germany |
英文摘要 | The role of stationary planetary waves in the dynamical response of the Arctic winter stratosphere circulation to global warming is investigated here by analyzing simulations performed with atmosphere-only models from phase 5 of the Coupled Model Intercomparison Project (CMIP5) driven by prescribed sea surface temperatures (SSTs). Climate models often simulate dynamical warming of the Arctic stratosphere as a response to global warming in association with a strengthening of the deep branch of the Brewer-Dobson circulation; however, until now, no satisfactory mechanism for such a response has been suggested. This study focuses on December-February (DJF) because this is the period when the troposphere and stratosphere are strongly coupled. When forced by increased SSTs, all the models analyzed here simulate Arctic stratosphere dynamical warming, mostly due to increased upward propagation of quasi-stationary wavenumber 1, as diagnosed by the meridional eddy heat flux. Further, it is shown that the stratospheric warming and increased wave flux to the stratosphere are related to the strengthening of the zonal winds in subtropics and midlatitudes near the tropopause. Evidence presented in this paper corroborate climate model simulations of future stratospheric changes and suggest a dynamical warming of the Arctic polar vortex as the most likely response to global warming. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407276600026 |
WOS关键词 | BREWER-DOBSON CIRCULATION ; SEA-SURFACE TEMPERATURE ; CLIMATE-CHANGE ; GREENHOUSE GASES ; TOTAL OZONE ; VARIABILITY ; TRENDS ; PROJECTIONS ; IMPACT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19556 |
专题 | 气候变化 |
作者单位 | 1.Finnish Meteorol Inst, Arctic Res, Helsinki, Finland; 2.Max Planck Inst Meteorol, Hamburg, Germany |
推荐引用方式 GB/T 7714 | Karpechko, Alexey Yu,Manzini, Elisa. Arctic Stratosphere Dynamical Response to Global Warming[J]. JOURNAL OF CLIMATE,2017,30(17). |
APA | Karpechko, Alexey Yu,&Manzini, Elisa.(2017).Arctic Stratosphere Dynamical Response to Global Warming.JOURNAL OF CLIMATE,30(17). |
MLA | Karpechko, Alexey Yu,et al."Arctic Stratosphere Dynamical Response to Global Warming".JOURNAL OF CLIMATE 30.17(2017). |
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