DOI: 10.1175/JCLI-D-14-00846.1
Scopus记录号: 2-s2.0-84942904525
论文题名: A hybrid cloud regime methodology used to evaluate Southern Ocean cloud and shortwave radiation errors in ACCESS
作者: Mason S. ; Fletcher J.K. ; Haynes J.M. ; Franklin C. ; Protat A. ; Jakob C.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 15 起始页码: 6001
结束页码: 6018
语种: 英语
Scopus关键词: Clouds
; Errors
; Oceanography
; Storms
; Extratropical cyclones
; Global climate model
; Hybrid methodologies
; Model errors
; Model evaluation
; Model evaluation/performance
; Short-wave radiation
; Southern ocean
; Climate models
; climate modeling
; cloud
; cloud microphysics
; error analysis
; numerical model
; parameterization
; shortwave radiation
; Southern Ocean
英文摘要: A deficit of shortwave cloud forcing over the Southern Ocean is persistent in many global climate models. Cloud regimes have been widely used in model evaluation studies to make a process-oriented diagnosis of cloud parameterization errors, but cloud regimes have some limitations in resolving both observed and simulated cloud behavior. A hybrid methodology is developed for identifying cloud regimes from observed and simulated cloud simultaneously. Through this methodology, 11 hybrid cloud regimes are identified in the ACCESS1.3 model for the high-latitude Southern Ocean. The hybrid cloud regimes resolve the features of observed cloud and characterize cloud errors in the model. The simulated properties of the hybrid cloud regimes, and their occurrence over the Southern Ocean and in the context of extratropical cyclones, are evaluated, and their contributions to the shortwave radiation errors are quantified. Three errors are identified: an overall deficit of cloud fraction, a tendency toward optically thin low andmidtopped cloud, and an absence of a shallow frontal-type cloud at high latitudes and in the warmfronts of extratropical cyclones. To demonstrate the utility of the hybrid cloud regimes for the evaluation of changes to the model, the effects of selected changes to the model microphysics are investigated. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50431
Appears in Collections: 气候变化事实与影响
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作者单位: School of Earth, Atmosphere and Environment, Monash University, Clayton, VIC, Australia; Cooperative Institute for Research in the Atmosphere, Colorado State University, Fort Collins, CO, United States; Oceans and Atmosphere Flagship, Commonwealth Scientific and Industrial Research Organization, Aspendale, VIC, Australia; Centre for Australian Weather and Climate Research, Melbourne, VIC, Australia; Australian Research Council Centre of Excellence for Climate System Science, Melbourne, VIC, Australia
Recommended Citation:
Mason S.,Fletcher J.K.,Haynes J.M.,et al. A hybrid cloud regime methodology used to evaluate Southern Ocean cloud and shortwave radiation errors in ACCESS[J]. Journal of Climate,2015-01-01,28(15)