globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-012-1441-x
Scopus记录号: 2-s2.0-84869509286
论文题名:
Perturbed physics ensemble using the MIROC5 coupled atmosphere-ocean GCM without flux corrections: Experimental design and results: Parametric uncertainty of climate sensitivity
作者: Shiogama H.; Watanabe M.; Yoshimori M.; Yokohata T.; Ogura T.; Annan J.D.; Hargreaves J.C.; Abe M.; Kamae Y.; O'ishi R.; Nobui R.; Emori S.; Nozawa T.; Abe-Ouchi A.; Kimoto M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 39, 期:12
起始页码: 3041
结束页码: 3056
语种: 英语
英文关键词: Climate sensitivity ; Cloud feedback ; General circulation model ; Metrics ; Perturbed physics ensemble
英文摘要: In this study, we constructed a perturbed physics ensemble (PPE) for the MIROC5 coupled atmosphere-ocean general circulation model (CGCM) to investigate the parametric uncertainty of climate sensitivity (CS). Previous studies of PPEs have mainly used the atmosphere-slab ocean models. A few PPE studies using a CGCM applied flux corrections, because perturbations in parameters can lead to large radiation imbalances at the top of the atmosphere and climate drifts. We developed a method to prevent climate drifts in PPE experiments using the MIROC5 CGCM without flux corrections. We simultaneously swept 10 parameters in atmosphere and surface schemes. The range of CS (estimated from our 35 ensemble members) was not wide (2. 2-3. 2 °C). The shortwave cloud feedback related to changes in middle-level cloud albedo dominated the variations in the total feedback. We found three performance metrics for the present climate simulations of middle-level cloud albedo, precipitation, and ENSO amplitude that systematically relate to the variations in shortwave cloud feedback in this PPE. © 2012 The Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55107
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作者单位: National Institute for Environmental Studies, Tsukuba, Ibaraki, 305-8506, Japan; Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan; Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan

Recommended Citation:
Shiogama H.,Watanabe M.,Yoshimori M.,et al. Perturbed physics ensemble using the MIROC5 coupled atmosphere-ocean GCM without flux corrections: Experimental design and results: Parametric uncertainty of climate sensitivity[J]. Climate Dynamics,2012-01-01,39(12)
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