DOI: 10.1007/s00382-017-3971-8
Scopus记录号: 2-s2.0-85032391987
论文题名: Simulations of three natural decadal climate variability phenomena in CMIP5 experiments with the UKMO HadCM3, GFDL-CM2.1, NCAR-CCSM4, and MIROC5 global earth system models
作者: Mehta V.M. ; Wang H. ; Mendoza K.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 51, 期: 4 起始页码: 1559
结束页码: 1584
语种: 英语
英文关键词: Decadal climate variability
; Pacific decadal oscillation
; Volcanic eruption
; West Pacific warm pool
Scopus关键词: aerosol
; climate variation
; CMIP
; experimental study
; Pacific Decadal Oscillation
; sea surface temperature
; simulation
; solar radiation
; volcanic eruption
; warm pool
; Pacific Ocean
; Pacific Ocean (West)
英文摘要: The ability of four Earth System Models (ESMs) to simulate major attributes of sea-surface temperature (SST) manifestations of the Pacific Decadal Oscillation (PDO), the tropical Atlantic SST gradient (TAG) variability, and the West Pacific Warm Pool (WPWP) SST variability was assessed. Data from simulation experiments conducted under the CMIP5 with the CM2.1, HadCM3, MIROC5, and CCSM4 ESMs from 1861 to 2005 were used. A Multi-Model Ensemble was also formed by combining data from the four ESMs. Aerosol optical depths and solar radiation were specified in these experiments. The simulation of PDO spatial pattern, annual cycle, and preferred timescales is the closest to observed attributes in these ESMs. The simulated and observed TAG SST patterns are generally similar, but their average annual cycles are very different and simulated TAG variability does not have a preferred decadal timescale unlike observed variability. No one of the ESMs is able to simulate the WPWP SST pattern. Simulated and observed average annual cycles of the WPWP SST are similar, and the dominant timescale of WPWP variability is close to 8 years in all ESMs and observations. Simulation skills of the three phenomena fluctuate from decade to decade in all ESMs. Major volcanic eruptions substantially influence observed and simulated indices and simulation skills of the three phenomena. The mixing of net surface heat flux anomalies to 200 m depth in the tropical and mid-latitude Pacific, and the WPWP region causes a delayed and multiyear response of the PDO and WPWP indices to volcanic eruptions. © 2017, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109167
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: The Center for Research on the Changing Earth System, 5523 Research Park Drive, Suite 205, Catonsville, MD 21228, United States; NOAA/Climate Prediction Center, College Park, MD, United States
Recommended Citation:
Mehta V.M.,Wang H.,Mendoza K.. Simulations of three natural decadal climate variability phenomena in CMIP5 experiments with the UKMO HadCM3, GFDL-CM2.1, NCAR-CCSM4, and MIROC5 global earth system models[J]. Climate Dynamics,2018-01-01,51(4)