globalchange  > 气候减缓与适应
DOI: 10.1002/joc.5256
论文题名:
Short communication simulated relationship between air temperature and precipitation over europe: Sensitivity to the choice of RCM and GCM
作者: Crhová L.; Holtanová E.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期:3
起始页码: 1595
结束页码: 1604
语种: 英语
英文关键词: Correlation ; Global climate model ; Regional climate model ; Relationship between temperature and precipitation
Scopus关键词: Atmospheric temperature ; Correlation methods ; Air temperature ; Global climate model ; Near surface air temperature ; Pearson correlation coefficients ; Positive value ; Regional climate modeling ; Regional climate models ; Seasonal dependence ; Climate models ; air temperature ; climate modeling ; correlation ; global climate ; precipitation (climatology) ; regional climate ; sensitivity analysis ; winter ; Europe
英文摘要: This paper presents an evaluation of the relationship between near-surface air temperature (T) and precipitation (P) over Europe simulated by regional climate models (RCMs) from the EURO-CORDEX project. Simulations of two RCMs (RCA4 and CCLM4-8-17) driven by four different global climate models (GCMs) in the period 1971–2000 were analysed. Two different coefficients, the Pearson correlation coefficient based on monthly anomalies and the T-P index (TPI) based on daily values, were used for this evaluation. First, the comparison of T-P correlation and TPI patterns calculated from E-OBS data was made. Afterwards, simulated T-P relationship patterns were briefly evaluated. We especially focused on evaluating the RCM and GCM influence on the simulated T-P relationship pattern. Our results indicate that RCM simulations captured the basic seasonal dependence of the T-P relationship over Europe represented by both T-P correlation and TPI patterns. The simulated T-P relationship pattern is more strongly influenced by an RCM than a driving GCM in contrast to temperature means in winter and precipitation and temperatures changes, which are more strongly influenced by driving GCM as shown in previous studies. The simulations of the CCLM4-8-17 RCM demonstrated noticeably better agreement with observed T-P relationship fields than the RCA4 RCM simulations. The T-P relationship simulated by RCA4 tends to shift to positive values in comparison to E-OBS values. These findings were found for both TPI and T-P correlation. © 2017 Royal Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117153
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作者单位: Department of Atmospheric Physics, Faculty of Mathematics and Physics, Charles University in Prague, Czech Republic; Czech Hydrometeorological Institute, Praha, Czech Republic

Recommended Citation:
Crhová L.,Holtanová E.. Short communication simulated relationship between air temperature and precipitation over europe: Sensitivity to the choice of RCM and GCM[J]. International Journal of Climatology,2018-01-01,38(3)
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