GSTDTAP  > 气候变化
DOI10.1175/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
ISSN0894-8755
EISSN1520-0442
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
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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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