DOI: 10.1007/s00382-017-4062-6
Scopus记录号: 2-s2.0-85039872495
论文题名: The connection between the Atlantic multidecadal oscillation and the Indian summer monsoon in CMIP5 models
作者: Luo F. ; Li S. ; Gao Y. ; Keenlyside N. ; Svendsen L. ; Furevik T.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 51, 期: 2018-07-08 起始页码: 3023
结束页码: 3039
语种: 英语
Scopus关键词: Atlantic Multidecadal Oscillation
; climate modeling
; CMIP
; monsoon
; precipitation (climatology)
; sea surface temperature
; summer
; teleconnection
; temperature gradient
; Atlantic Ocean
; Atlantic Ocean (North)
; Atlantic Ocean (Tropical)
; India
; Indian Ocean
; Indian Ocean (Tropical)
英文摘要: A number of observational and modeling studies have shown a co-relationship between higher than normal sea surface temperatures (SSTs) in the North Atlantic and increased summer precipitation over India. However, discrepancies among the models make the robustness of the results debatable. This study examines the connections between the Atlantic multidecadal oscillation (AMO) and the Indian summer monsoon (ISM) in 66 “Historical” runs of 22 coupled models that were part of the fifth phase of the Coupled Model Intercomparison Project (CMIP5). Diverse results are obtained, and correlation coefficients between the AMO and ISM range from − 0.39 to 0.66. Only 10 out of 66 members (~ 15%) show a positive correlation statistically significant at the 90% level (> 0.42), close to the observation (0.5). The models with positive AMO–ISM correlations show an AMO-related atmospheric teleconnection that involves an extratropical–tropical SST gradient in the North Pacific, as well as a more regional temperature difference between the Indian subcontinent and the tropical Indian Ocean. In comparison, the models with negative correlations fail to capture these teleconnections. Moreover, the models with higher climatological precipitation over the tropical Atlantic and warmer climatological SST in the tropical Atlantic and the North Pacific relative to multi-member ensemble, as well as a weak westerly jet, perform better at reproducing the observed teleconnections. © 2017, Springer-Verlag GmbH Germany, part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109092
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Nansen-Zhu International Research Centre and Climate Change Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Department of Atmospheric Science, China University of Geoscience, Wuhan, China; Nansen Environmental and Remote Sensing Center and Bjerknes Centre for Climate Research, Bergen, Norway; Bjerknes Centre for Climate Research, Geophysical Institute, University of Bergen, Bergen, Norway
Recommended Citation:
Luo F.,Li S.,Gao Y.,et al. The connection between the Atlantic multidecadal oscillation and the Indian summer monsoon in CMIP5 models[J]. Climate Dynamics,2018-01-01,51(2018-07-08)