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DOI | 10.1175/JCLI-D-17-0047.1 |
Coupling of Stratospheric Warmings with Mesospheric Coolings in Observations and Simulations | |
Zuelicke, Christoph1; Becker, Erich1; Matthias, Vivien1; Peters, Dieter H. W.1; Schmidt, Hauke2; Liu, Han-Li3; de la Torre Ramos, Laura4; Mitchell, Daniel M.5,6 | |
2018-02-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:3页码:1107-1133 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA; Spain; England |
英文摘要 | The vertical coupling between the stratosphere and the mesosphere is diagnosed from polar cap temperatures averaged over 60 degrees-90 degrees N with a new method: the joint occurrence of a warm stratosphere at 10 hPa and a cold mesosphere at 0.01 hPa. The investigation of an 11-yr-long dataset (2004-15) from Aura-MLS observations shows that such mesospheric coupling days appear in 7% of the winter. During major sudden stratospheric warming events mesospheric couplings are present with an enhanced average daily frequency of 22%. This daily frequency changes from event to event but broadly results in five of seven major warmings being classified as mesospheric couplings (2006, 2008, 2009, 2010, and 2013). The observed fraction of mesospheric coupling events (71%) is compared with simulations of the Kuhlungsborn Mechanistic Circulation Model (KMCM), the Hamburg Model of the Neutral and Ionized Atmosphere (HAMMONIA), and the Whole Atmosphere Community Climate Model (WACCM). The simulated fraction of mesospheric coupling events ranges between 57% and 94%, which fits the observations. In searching for causal relations weak evidence is found that major warming events with strong intensity or split vortices favor their coupling with the upper mesosphere. More evidence is found with a conceptual model: an effective vertical coupling between 10 and 0.01 hPa is provided by deep zonal-mean easterlies at 60 degrees N, which are acting as a gravity-wave guide. The explained variance is above 40% in the four datasets, which indicates a near-realistic simulation of this process. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425166100011 |
WOS关键词 | INERTIA-GRAVITY WAVES ; NIGHT JET OSCILLATION ; MIDDLE ATMOSPHERE ; SUDDEN WARMINGS ; PARAMETERIZATION ; THERMOSPHERE ; MODEL ; VARIABILITY ; SENSITIVITY ; PERSISTENCE |
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/19784 |
专题 | 气候变化 |
作者单位 | 1.Leibniz Inst Atmospher Phys, Kuhlungsborn, Germany; 2.Max Planck Inst Meteorol, Hamburg, Germany; 3.Natl Ctr Atmospher Res, High Altitude Observ, Pob 3000, Boulder, CO 80307 USA; 4.Univ Vigo, Environm Phys Lab, Orense, Spain; 5.Univ Bristol, Dept Phys, Bristol, Avon, England; 6.Univ Bristol, Sch Geog Sci, Bristol, Avon, England |
推荐引用方式 GB/T 7714 | Zuelicke, Christoph,Becker, Erich,Matthias, Vivien,et al. Coupling of Stratospheric Warmings with Mesospheric Coolings in Observations and Simulations[J]. JOURNAL OF CLIMATE,2018,31(3):1107-1133. |
APA | Zuelicke, Christoph.,Becker, Erich.,Matthias, Vivien.,Peters, Dieter H. W..,Schmidt, Hauke.,...&Mitchell, Daniel M..(2018).Coupling of Stratospheric Warmings with Mesospheric Coolings in Observations and Simulations.JOURNAL OF CLIMATE,31(3),1107-1133. |
MLA | Zuelicke, Christoph,et al."Coupling of Stratospheric Warmings with Mesospheric Coolings in Observations and Simulations".JOURNAL OF CLIMATE 31.3(2018):1107-1133. |
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