Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0328.1 |
How Persistent Are North Atlantic-European Sector Weather Regimes? | |
Fereday, David | |
2017-04-01 | |
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:7 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | Persistent weather regimes in daily North Atlantic-European winter mean sea level pressure (MSLP) fields from the 140-yr Twentieth Century Reanalysis are investigated. The phase space is divided into discrete cells based on quantiles of empirical orthogonal function (EOF) principal components; the cells are thus approximately equally populated. An estimate of persistence is provided in terms of the number of different cells visited for a given trajectory duration. This technique is also applied to the well-known Lorenz63 system, which clearly exhibits two regimes, and the more complex Lorenz96 system where the regime structure is less pronounced. While the analysis identifies the two regimes of both the Lorenz63 and Lorenz96 systems, evidence for comparable regimes in the MSLP data is weaker. Recurrent weather regimes produced by k-means clustering might be expected to be clearly linked to slower-moving regions of phase space, but this is shown not to be the case. Only the region of phase space associated with the negative phase of the North Atlantic Oscillation (NAO) shows any regime-like behavior. Nevertheless, the analysis does reveal some structure to the time evolution of the atmospheric circulation-transitions between neighboring pairs of cells show a preferred direction of evolution in many cases. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399678400006 |
WOS关键词 | ATMOSPHERIC CIRCULATION REGIMES ; CLUSTER-ANALYSIS ; FLOW REGIMES ; VARIABILITY ; OSCILLATION ; DYNAMICS ; PATTERNS ; TRANSITIONS ; PERSPECTIVE ; PREDICTION |
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/20189 |
专题 | 气候变化 |
作者单位 | Met Off Hadley Ctr, Exeter, Devon, England |
推荐引用方式 GB/T 7714 | Fereday, David. How Persistent Are North Atlantic-European Sector Weather Regimes?[J]. JOURNAL OF CLIMATE,2017,30(7). |
APA | Fereday, David.(2017).How Persistent Are North Atlantic-European Sector Weather Regimes?.JOURNAL OF CLIMATE,30(7). |
MLA | Fereday, David."How Persistent Are North Atlantic-European Sector Weather Regimes?".JOURNAL OF CLIMATE 30.7(2017). |
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