DOI: 10.1175/JCLI-D-14-00430.1
Scopus记录号: 2-s2.0-84942897665
论文题名: Evaluation of CMIP5 models in the context of dynamical downscaling over Europe
作者: Jury M.W. ; Prein A.F. ; Truhetz H. ; Gobiet A.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 14 起始页码: 5575
结束页码: 5582
语种: 英语
Scopus关键词: Boundary conditions
; Image segmentation
; Quality control
; Coupled Model Intercomparison Project
; General circulation model simulations
; Hindcasts
; Model errors
; Model evaluation/performance
; Regional climate modeling (RCM)
; Regional climate simulation
; Regional model
; Climate models
; atmospheric general circulation model
; boundary condition
; climate modeling
; downscaling
; hindcasting
; regional climate
; troposphere
; Europe
英文摘要: The quality of regional climate model (RCM) simulations is strongly dependent on the quality of data provided as lateral boundary conditions (LBCs). Frequently, the quality of near-surface variables of general circulation model (GCM) simulations like those from phase 5 of the Coupled Model Intercomparison Project (CMIP5) is analyzed in the region of interest. However, such analysis does not necessarily lead to the selection of high-quality LBCs, as demonstrated in this study. The study region is the European domain of the Coordinated Regional Climate Downscaling Experiment (EURO-CORDEX), where a model performance index (MPI) is used to evaluate the skill of CMIP5 GCMs to reproduce near-surface variables within the EURO-CORDEX domain and free atmosphere variables along its lateral boundaries as a proxy for LBCs used in regional climate modeling. The results suggest that a GCM's skill in simulating near-surface variables is correlated with 0.62 (Spearman's r) to its skill in simulating LBCs for regional climate simulations. However, there is hardly any correlation between the performances of different variables, implying that a GCM evaluation solely based on surface parameters or a few variables is inadequate to select suitable driving data for regional climate models. The selection should include the evaluation of all variables passed to theRCMas LBCs in the lateral boundary zone (LBZ) on at least one midtropospheric level. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50525
Appears in Collections: 气候变化事实与影响
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作者单位: Wegener Center for Climate and Global Change, University of Graz, Graz, Austria; National Center for Atmospheric Research, Boulder, CO, United States; Central Institute for Meteorology and Geodynamics (ZAMG), Graz, Austria
Recommended Citation:
Jury M.W.,Prein A.F.,Truhetz H.,et al. Evaluation of CMIP5 models in the context of dynamical downscaling over Europe[J]. Journal of Climate,2015-01-01,28(14)