DOI: 10.1007/s00382-014-2394-z
Scopus记录号: 2-s2.0-84939964392
论文题名: Teleconnections of the tropical Atlantic and Pacific Oceans in a CMIP5 model ensemble
作者: Ott I. ; Romberg K. ; Jacobeit J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 44, 期: 2017-11-12 起始页码: 3043
结束页码: 3055
语种: 英语
英文关键词: CMIP5
; Model ensemble
; Teleconnection
; Tropical Atlantic
; Tropical Pacific
英文摘要: This study investigates the teleconnections between the tropical Atlantic and Pacific Oceans in 15 state-of-the-art fully coupled general circulation models and Earth system models without external SST forcing. In contrast to other studies, the teleconnection is considered in both directions—from the Pacific to the Atlantic and from the Atlantic to the Pacific. The model ensemble is generally able to simulate the propagation of atmospheric and oceanic signals to the adjacent ocean basin, generated by warm sea surface temperature (SST) anomalies in the tropical eastern oceans with Atlantic summer events lagging or leading Pacific boreal winter events. This is investigated by means of time-lagged composite analyses of different atmospheric parameters, including sea level pressure, wind, stream function, velocity potential, vertical air movement and divergent wind at several levels. However, the modelled inter-basin teleconnection and its correct frequency of occurrence depend on the strong warm SST biases in the Atlantic Benguela upwelling region and in the Pacific Ocean. © 2014, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54112
Appears in Collections: 过去全球变化的重建
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作者单位: Institute of Geography, University of Augsburg, Alter Postweg 118, Augsburg, Germany
Recommended Citation:
Ott I.,Romberg K.,Jacobeit J.. Teleconnections of the tropical Atlantic and Pacific Oceans in a CMIP5 model ensemble[J]. Climate Dynamics,2015-01-01,44(2017-11-12)