DOI: 10.1007/s00382-012-1449-2
Scopus记录号: 2-s2.0-84867101737
论文题名: Use of circulation types classifications to evaluate AR4 climate models over the Euro-Atlantic region
作者: Pastor M.A. ; Casado M.J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 39, 期: 2017-07-08 起始页码: 2059
结束页码: 2077
语种: 英语
英文关键词: Circulation types
; COST733
; ERA40
; Euro-Atlantic region
; GCMs
; Synoptic climatology
英文摘要: This paper presents an evaluation of the multi-model simulations for the 4th Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) in terms of their ability to simulate the ERA40 circulation types over the Euro-Atlantic region in winter season. Two classification schemes, k-means and SANDRA, have been considered to test the sensitivity of the evaluation results to the classification procedure. The assessment allows establishing different rankings attending spatial and temporal features of the circulation types. Regarding temporal characteristics, in general, all AR4 models tend to underestimate the frequency of occurrence. The best model simulating spatial characteristics is the UKMO-HadGEM1 whereas CCSM3, UKMO-HadGEM1 and CGCM3. 1(T63) are the best simulating the temporal features, for both classification schemes. This result agrees with the AR4 models ranking obtained when having analysed the ability of the same AR4 models to simulate Euro-Atlantic variability modes. This study has proved the utility of applying such a synoptic climatology approach as a diagnostic tool for models' assessment. The ability of the models to properly reproduce the position of ridges and troughs and the frequency of synoptic patterns, will therefore improve our confidence in the response of models to future climate changes. © 2012 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55154
Appears in Collections: 过去全球变化的重建
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作者单位: Agencia Estatal de Meteorología (AEMET), Leonardo Prieto Castro 8, 28040 Madrid, Spain
Recommended Citation:
Pastor M.A.,Casado M.J.. Use of circulation types classifications to evaluate AR4 climate models over the Euro-Atlantic region[J]. Climate Dynamics,2012-01-01,39(2017-07-08)