DOI: 10.1002/joc.5355
论文题名: Comparison of the Pacific Decadal Oscillation in climate model simulations and observations
作者: Wei Y. ; Yu H. ; Huang J. ; He Y. ; Yang B. ; Guan X. ; Liu X.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38 起始页码: e99
结束页码: e118
语种: 英语
英文关键词: climate model simulations
; CMIP5
; Pacific Decadal Oscillation
; sea surface temperature
Scopus关键词: Atmospheric pressure
; Atmospheric temperature
; Climatology
; Global warming
; Oceanography
; Submarine geophysics
; Surface properties
; Surface waters
; Climate model simulations
; CMIP5
; Coupled Model Intercomparison Project
; Eastern equatorial Pacific
; El Nino southern oscillation
; Pacific decadal oscillation
; Sea surface temperature (SST)
; Sea surface temperature anomalies
; Climate models
; air-sea interaction
; climate modeling
; CMIP
; computer simulation
; El Nino-Southern Oscillation
; global warming
; monsoon
; Pacific Decadal Oscillation
; sea surface temperature
; temperature anomaly
; Atlantic Ocean
; China
; Indian Ocean
英文摘要: The ability of climate models to simulate the Pacific Decadal Oscillation (PDO) and its global teleconnections is examined using the outputs of 20 Coupled Model Intercomparison Project (CMIP5) models from historical experiments. It is shown that the global warming trend is reproduced by the models, but there is a considerable difference between the models in the PDO region. The standard deviation of detrended sea surface temperature anomalies (SSTAs) in the models is similar to that of the observations, especially in the central and eastern equatorial Pacific and the North Pacific, which are the regions closely associated with the PDO and El Nino-Southern Oscillation. The globally averaged SSTA during 1900–1940 in the CMIP5 models and observations showed large divergence, which is mainly due to the SSTA in the PDO region. The most significant cycle of the PDO indexes in most of the models had a 60–80 years period, which is different from the observed PDO period (40–60 years). However, the models perform better for the spatial pattern of the PDO, and 90% of the spatial correlations between the models and observations of the spatial pattern of the PDO are above 0.8. In addition, the models can simulate the basic correlation between the PDO and Pacific SSTA variability, but most of them overestimate the relationship in the Indian and Atlantic Oceans. The CMIP5 models are better at simulating the impact of the PDO on winter precipitation in southern North America but are less accurate in simulating summer precipitation in eastern China. This is probably because most of the models are not accurate in simulating the impacts of the PDO on the western Pacific subtropical high and the East Asian summer monsoon. © 2017 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117017
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China; Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province, Key Open Laboratory of Arid Climate Change and Disaster Reduction of CMA, Institute of Arid Meteorology, China Meteorological Administration, Lanzhou, China
Recommended Citation:
Wei Y.,Yu H.,Huang J.,et al. Comparison of the Pacific Decadal Oscillation in climate model simulations and observations[J]. International Journal of Climatology,2018-01-01,38