DOI: 10.1007/s00382-014-2435-7
Scopus记录号: 2-s2.0-84943814414
论文题名: Understanding the systematic air temperature biases in a coupled climate system model through a process-based decomposition method
作者: Ren R.-C. ; Yang Y. ; Cai M. ; Rao J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 45, 期: 2017-07-08 起始页码: 1801
结束页码: 1817
语种: 英语
英文关键词: CFRAM
; FGOALS-s2
; Model air temperature bias
; Process-based decomposition
英文摘要: A quantitative attribution analysis is performed on the systematic atmospheric temperature biases in a coupled climate system model (flexible global ocean–atmosphere–land system model, spectral version 2) in reference to the European Center for Medium-Range Weather Forecasts, Re-analysis Interim data during 1979–2005. By adopting the coupled surface–atmosphere climate feedback response analysis method, the model temperature biases are related to model biases in representing the radiative processes including water vapor, ozone, clouds and surface albedo, and the non-radiative processes including surface heat fluxes and other dynamic processes. The results show that the temperature biases due to biases in radiative and non-radiative processes tend to compensate one another. In general, the radiative biases tend to dominate in the summer hemisphere, whereas the non-radiative biases dominate in the winter hemisphere. The temperature biases associated with radiative processes due to biases in ozone and water vapor content are the main contributors to the total temperature bias in the tropical and summer stratosphere. The overestimated surface albedo in both polar regions always results in significant cold biases in the atmosphere above in the summer season. Apart from these radiative biases, the zonal-mean patterns of the temperature biases in both boreal winter and summer are largely determined by model biases in non-radiative processes. In particular, the stronger non-radiative process biases in the northern winter hemisphere are responsible for the relatively larger ‘cold pole’ bias in the northern winter polar stratosphere. © 2014, Springer-Verlag Berlin Heidelberg. 资助项目: NSFC, National Natural Science Foundation of China
; NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53982
Appears in Collections: 过去全球变化的重建
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作者单位: State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, P.O. Box 9804, Beijing, China; University of Chinese Academy of Sciences, Beijing, China; Department of Earth, Ocean, and Atmospheric Science, Florida State University, Tallahassee, FL, United States
Recommended Citation:
Ren R.-C.,Yang Y.,Cai M.,et al. Understanding the systematic air temperature biases in a coupled climate system model through a process-based decomposition method[J]. Climate Dynamics,2015-01-01,45(2017-07-08)