DOI: 10.1175/JCLI-D-17-0176.1
Scopus记录号: 2-s2.0-85049723964
论文题名: Dynamical properties of the North Atlantic atmospheric circulation in the past 150 years in CMIP5 models and the 20CRv2c reanalysis
作者: Rodrigues D. ; Alvarez-Castro M.C. ; Messori G. ; Yiou P. ; Robin Y. ; Faranda D.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 15 起始页码: 6097
结束页码: 6111
语种: 英语
英文关键词: Atmospheric circulation
; Climate models
; Nonlinear dynamics
; Reanalysis data
; Statistical techniques
Scopus关键词: Climatology
; Dynamical systems
; Dynamics
; Space flight
; Atmospheric circulation
; Atmospheric circulation patterns
; Attractor properties
; Dynamical properties
; Historical simulation
; Phase space trajectory
; Reanalysis
; Statistical techniques
; Climate models
; atmospheric circulation
; atmospheric dynamics
; climate modeling
; CMIP
; statistical analysis
; Atlantic Ocean
; Atlantic Ocean (North)
英文摘要: It is of fundamental importance to evaluate the ability of climate models to capture the large-scale atmospheric circulation patterns and, in the context of a rapidly increasing greenhouse forcing, the robustness of the changes simulated in these patterns over time. Here we approach this problem from an innovative point of view based on dynamical systems theory. We characterize the atmospheric circulation over the North Atlantic in the CMIP5 historical simulations (1851-2000) in terms of two instantaneous metrics: local dimension of the attractor and stability of phase-space trajectories. We then use these metrics to compare the models to the Twentieth Century Reanalysis version 2c (20CRv2c) over the same historical period. The comparison suggests that (i) most models capture to some degree the median attractor properties, and models with finer grids generally perform better; (ii) in most models the extremes in the dynamical systems metrics match large-scale patterns similar to those found in the reanalysis; (iii) changes in the attractor properties observed for the ensemble-mean 20CRv2c are artifacts resulting from inhomogeneities in the standard deviation of the ensemble over time; and (iv) the long-term trends in local dimension observed among the 56 members of the 20CR ensemble have the same sign as those observed in the CMIP5 multimodel mean, although the multimodel trend is much weaker. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111416
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Laboratoire des Sciences du Climat et de l'Environnement, UMR 8212 CEA-CNRS-UVSQ, IPSL, Université Paris-Saclay, Gif-sur-Yvette, France; Department of Meteorology, Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden; Laboratoire des Sciences du Climat et de l'Environnement, UMR 8212 CEA-CNRS-UVSQ, IPSL, Université Paris-Saclay, Gif-sur-Yvette, France; London Mathematical Laboratory, London, United Kingdom
Recommended Citation:
Rodrigues D.,Alvarez-Castro M.C.,Messori G.,et al. Dynamical properties of the North Atlantic atmospheric circulation in the past 150 years in CMIP5 models and the 20CRv2c reanalysis[J]. Journal of Climate,2018-01-01,31(15)