DOI: 10.5194/cp-8-25-2012
Scopus记录号: 2-s2.0-84855533414
论文题名: Internal and external variability in regional simulations of the Iberian Peninsula climate over the last millennium
作者: Gómez-Navarro J.J. ; Montávez J.P. ; Jiménez-Guerrero P. ; Jerez S. ; Lorente-Plazas R. ; González-Rouco J.F. ; Zorita E.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2012
卷: 8, 期: 1 起始页码: 25
结束页码: 36
语种: 英语
Scopus关键词: climate modeling
; climate variation
; paleoclimate
; paleotemperature
; precipitation intensity
; reconstruction
; regional climate
; temperature profile
; Iberian Peninsula
英文摘要: In this study we analyse the role of internal variability in regional climate simulations through a comparison of two regional paleoclimate simulations for the last millennium. They share the same external forcings and model configuration, differing only in the initial condition used to run the driving global model simulation. A comparison of these simulations allows us to study the role of internal variability in climate models at regional scales, and how it affects the long-term evolution of climate variables such as temperature and precipitation. The results indicate that, although temperature is homogeneously sensitive to the effect of external forcings, the evolution of precipitation is more strongly governed by random unpredictable internal dynamics. There are, however, some areas where the role of internal variability is lower than expected, allowing precipitation to respond to the external forcings. In this respect, we explore the underlying physical mechanisms responsible for it. This study identifies areas, depending on the season, in which a direct comparison between model simulations of precipitation and climate reconstructions would be meaningful, but also other areas where good agreement between them should not be expected even if both are perfect. © Author(s) 2012. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49628
Appears in Collections: 气候变化与战略
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Recommended Citation:
Gómez-Navarro J.J.,Montávez J.P.,Jiménez-Guerrero P.,et al. Internal and external variability in regional simulations of the Iberian Peninsula climate over the last millennium[J]. Climate of the Past,2012-01-01,8(1)