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DOI | 10.1175/JCLI-D-17-0820.1 |
Recent Breakdown of the Seasonal Linkage between the Winter North Atlantic Oscillation/Northern Annular Mode and Summer Northern Annular Mode | |
Yamazaki, Koji1,2; Ogi, Masayo3; Tachibana, Yoshihiro2; Nakamura, Tetsu1; Oshima, Kazuhiro4,5 | |
2019 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:2页码:591-605 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; Canada |
英文摘要 | The summer northern annular mode (NAM) and the winter North Atlantic Oscillation (NAO)/winter NAM have a positive correlation from the mid-1960s to the 1980s. Namely, when the winter NAO/NAM is in a positive phase, the following summer NAM tended to be in a positive phase. During the period from the mid-1960s to the 1980s, the NAO/NAM signals extended to the stratosphere in winter. Also, the lower-tropospheric warm anomaly over northern Eurasia in winter associated with the positive phase of NAO/NAM continued into spring. In summer, the annular anomalies in the temperature and 500-hPa height fields appeared, and the high-latitude westerly wind was enhanced following the winter positive NAO/NAM. However, after circa 1990, the seasonal linkage was broken (i.e., the winter-to-summer correlation became insignificant). The stratospheric signal in the winter NAO/NAM became weak and summer signals associated with the winter NAO/NAM almost disappeared. Seasonal evolutions of atmospheric circulation and sea surface temperature (SST) anomalies associated with the winter NAO are examined for an early good-linkage period and a recent poor-linkage period. We discuss the possible causes of the linkage breakdown such as stratospheric ozone, North Atlantic SST, and Atlantic multidecadal oscillation, besides chaotic internal variability in the climate system. Simulations with the Community Earth System Model suggest that the ocean and/or sea ice with interseasonal memories possibly cause the linkage, besides large internal variability through which the linkage can take place by chance. |
英文关键词 | Arctic Oscillation Atmosphere-ocean interaction Stratosphere-troposphere coupling Climate prediction Decadal variability North Atlantic Oscillation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000454493900005 |
WOS关键词 | EXTRATROPICAL CIRCULATION ; ATMOSPHERIC CIRCULATION ; PERSISTENCE ; IRRADIANCE ; FEEDBACK ; IMPACT ; NAO |
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/20024 |
专题 | 气候变化 |
作者单位 | 1.Hokkaido Univ, Fac Environm Earth Sci, Sapporo, Hokkaido, Japan; 2.Mie Univ, Grad Sch Bioresources, Tsu, Mie, Japan; 3.Univ Manitoba, Ctr Earth Observat Sci, Winnipeg, MB, Canada; 4.Japan Agcy Marine Earth Sci & Technol, Inst Arctic Climate & Environm Res, Yokosuka, Kanagawa, Japan; 5.Inst Environm Sci, Dept Radioecol, Rokkasho, Japan |
推荐引用方式 GB/T 7714 | Yamazaki, Koji,Ogi, Masayo,Tachibana, Yoshihiro,et al. Recent Breakdown of the Seasonal Linkage between the Winter North Atlantic Oscillation/Northern Annular Mode and Summer Northern Annular Mode[J]. JOURNAL OF CLIMATE,2019,32(2):591-605. |
APA | Yamazaki, Koji,Ogi, Masayo,Tachibana, Yoshihiro,Nakamura, Tetsu,&Oshima, Kazuhiro.(2019).Recent Breakdown of the Seasonal Linkage between the Winter North Atlantic Oscillation/Northern Annular Mode and Summer Northern Annular Mode.JOURNAL OF CLIMATE,32(2),591-605. |
MLA | Yamazaki, Koji,et al."Recent Breakdown of the Seasonal Linkage between the Winter North Atlantic Oscillation/Northern Annular Mode and Summer Northern Annular Mode".JOURNAL OF CLIMATE 32.2(2019):591-605. |
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