Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD025829 |
Relative roles of the MJO and stratospheric variability in North Atlantic and European winter climate | |
Schwartz, Chen; Garfinkel, Chaim I. | |
2017-04-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | Israel |
英文摘要 | European and eastern United States wintertime weather is strongly influenced by large-scale modes of variability in the Northern Hemisphere such as the Arctic Oscillation (AO) and North Atlantic Oscillation (NAO). The negative phase of the NAO has been linked to both the Madden-Julian Oscillation (MJO) phase with convection in the West Pacific (phases 6 and 7) and to stratospheric sudden warmings (SSW), but the relative role of each phenomenon is not clear, and the two phenomena are themselves linked, as more than half of SSW events were preceded by phases 6 and 7 of the MJO. Here we disentangle the relative roles of MJO phase 6/7 and stratospheric variability for Northern Hemisphere surface weather during boreal winter. We show that stratospheric variability leads to significantly different North Atlantic anomalies if it is preceded by MJO phase 6/7. Furthermore, MJO phase 6/7 leads to a long-lived negative AO pattern only if it modulates the stratosphere first. Hence, proper attribution of their respective influence on surface weather needs to take into consideration the linkages between these two phenomena. Finally, MJO phase 6/7 events that lead to SSW can be differentiated from those which do not by their characteristics within the tropics: only MJO phase 6/7 events in which enhanced convection propagates into the South China Sea, which rarely occurs in winter, lead to SSWs. |
英文关键词 | Madden-Julian Oscillation Arctic Oscillation sudden stratospheric warming North Atlantic Oscillation subseasonal variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401180800004 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; SEASONAL PREDICTION ; FORECAST SKILL ; WARMINGS ; PREDICTABILITY ; CIRCULATION ; TROPOSPHERE ; WEATHER ; VORTEX ; FLOW |
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/32420 |
专题 | 气候变化 |
作者单位 | Hebrew Univ Jerusalem, Fredy & Nadine Herrmann Inst Earth Sci, Jerusalem, Israel |
推荐引用方式 GB/T 7714 | Schwartz, Chen,Garfinkel, Chaim I.. Relative roles of the MJO and stratospheric variability in North Atlantic and European winter climate[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(8). |
APA | Schwartz, Chen,&Garfinkel, Chaim I..(2017).Relative roles of the MJO and stratospheric variability in North Atlantic and European winter climate.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(8). |
MLA | Schwartz, Chen,et al."Relative roles of the MJO and stratospheric variability in North Atlantic and European winter climate".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.8(2017). |
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