GSTDTAP  > 气候变化
DOI10.1175/JCLI-D-17-0583.1
Weak El Nino and Winter Climate in the Mid- to High Latitudes of Eurasia
Zhang, Peng1,2,3; Wang, Bin3,4,5; Wu, Zhiwei1,2
2019
发表期刊JOURNAL OF CLIMATE
ISSN0894-8755
EISSN1520-0442
出版年2019
卷号32期号:2页码:405-421
文章类型Article
语种英语
国家Peoples R China; USA
英文摘要

According to the sea surface temperature anomaly (SSTA) intensity in the Nino-3.4 region and the east-west gradient across the Pacific, three types of El Nino are identified in this work. An event with larger than average intensity is defined as a strong El Nino, all others are considered to be weak events. Almost all strong El Ninos are concurrent with a large gradient, which is featured by negative SSTAs in the western Pacific and positive SSTAs in the equatorial eastern Pacific (EP) and Indian Ocean (IO). According to the east-west gradient, the weak events can be subdivided into gradient-weak (GW) El Nino and equatorial-weak (EW) El Nino. The GW El Nino characterizes a great east-west gradient without a significant IO SSTA. In contrast, the EW event features a positive SSTA over the tropical IO and EP. The impact of GW El Nino on the North Atlantic-Eurasia continent (NA-Eurasia) displays a negative North Atlantic Oscillation (NAO)-like atmospheric anomaly, resulting in a drier and cooler-than-normal winter over Eurasia. Observational and numerical evidence indicate that the prolonged subtropical jet from the North Pacific to NA acts as a waveguide that captures the planetary Rossby waves generated by the GW El Nino. This waveguide favors the propagation of the perturbations into the downstream regions, which would affect the NA-Eurasian climate. However, the EW El Nino is accompanied by a relatively weak subtropical jet that cannot impact the NA-Eurasian climate significantly. For the strong El Nino, the absence of the NAO signal can be attributed to the counteracting of the teleconnections triggered by the Pacific and the tropical IO.


英文关键词Atmosphere Atmosphere-ocean interaction Atmospheric circulation Climate variability Interannual variability
领域气候变化
收录类别SCI-E
WOS记录号WOS:000454202900002
WOS关键词NORTH-ATLANTIC OSCILLATION ; SOUTHERN-OSCILLATION ; SEASONAL PREDICTION ; ATMOSPHERIC BRIDGE ; INDIAN-OCEAN ; RELATIVE CONTRIBUTIONS ; ENSO TELECONNECTIONS ; SURFACE TEMPERATURES ; SUMMER RAINFALL ; SST ANOMALIES
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/19898
专题气候变化
作者单位1.Fudan Univ, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China;
2.Fudan Univ, Inst Atmospher Sci, Shanghai, Peoples R China;
3.Nanjing Univ Informat Sci & Technol, Earth Syst Modeling Ctr, Nanjing, Jiangsu, Peoples R China;
4.Univ Hawaii Manoa, Dept Atmospher Sci, Honolulu, HI 96822 USA;
5.Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA
推荐引用方式
GB/T 7714
Zhang, Peng,Wang, Bin,Wu, Zhiwei. Weak El Nino and Winter Climate in the Mid- to High Latitudes of Eurasia[J]. JOURNAL OF CLIMATE,2019,32(2):405-421.
APA Zhang, Peng,Wang, Bin,&Wu, Zhiwei.(2019).Weak El Nino and Winter Climate in the Mid- to High Latitudes of Eurasia.JOURNAL OF CLIMATE,32(2),405-421.
MLA Zhang, Peng,et al."Weak El Nino and Winter Climate in the Mid- to High Latitudes of Eurasia".JOURNAL OF CLIMATE 32.2(2019):405-421.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, Peng]的文章
[Wang, Bin]的文章
[Wu, Zhiwei]的文章
百度学术
百度学术中相似的文章
[Zhang, Peng]的文章
[Wang, Bin]的文章
[Wu, Zhiwei]的文章
必应学术
必应学术中相似的文章
[Zhang, Peng]的文章
[Wang, Bin]的文章
[Wu, Zhiwei]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。