DOI: 10.1007/s00382-012-1613-8
Scopus记录号: 2-s2.0-84884703783
论文题名: Evaluation of the regional climate model ALADIN to simulate the climate over North America in the CORDEX framework
作者: Lucas-Picher P. ; Somot S. ; Déqué M. ; Decharme B. ; Alias A.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2013
卷: 41, 期: 2017-05-06 起始页码: 1117
结束页码: 1137
语种: 英语
英文关键词: CORDEX framework
; Flood
; Large-scale nudging
; Multi-year climate simulations
; North America
; Regional climate model
英文摘要: In this study, an ensemble of four multi-year climate simulations is performed with the regional climate model ALADIN to evaluate its ability to simulate the climate over North America in the CORDEX framework. The simulations differ in their driving fields (ERA-40 or ERA-Interim) and the nudging technique (with or without large-scale nudging). The validation of the simulated 2-m temperature and precipitation with observationally-based gridded data sets shows that ALADIN performs similarly to other regional climate models that are commonly used over North America. Large-scale nudging improves the temporal correlation of the atmospheric circulation between ALADIN and its driving field, and also reduces the warm and dry summer biases in central North America. The differences between the simulations driven with different reanalyses are small and are likely related to the regional climate model's induced internal variability. In general, the impact of different driving fields on ALADIN is smaller than that of large-scale nudging. The analysis of the multi-year simulations over the prairie and the east taiga indicates that the ALADIN 2-m temperature and precipitation interannual variability is similar or larger than that observed. Finally, a comparison of the simulations with observations for the summer 1993 shows that ALADIN underestimates the flood in central North America mainly due to its systematic dry bias in this region. Overall, the results indicate that ALADIN can produce a valuable contribution to CORDEX over North America. © 2012 Springer-Verlag Berlin Heidelberg.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54812
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Rossby Centre, Swedish Meteorological and Hydrological Institute (SMHI), Folkborgsvägen 17, 601 76 Norrköping, Sweden; Centre National de Recherches Météorologiques (CNRM-GAME), Météo-France/CNRS, Toulouse, France
Recommended Citation:
Lucas-Picher P.,Somot S.,Déqué M.,et al. Evaluation of the regional climate model ALADIN to simulate the climate over North America in the CORDEX framework[J]. Climate Dynamics,2013-01-01,41(2017-05-06)