DOI: 10.1002/2017MS000991
Scopus记录号: 2-s2.0-85041732857
论文题名: Parameterization Interactions in Global Aquaplanet Simulations
作者: Bhattacharya R ; , Bordoni S ; , Suselj K ; , Teixeira J
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2018
卷: 10, 期: 2 起始页码: 403
结束页码: 420
语种: 英语
英文关键词: Boundary layers
; Climate models
; Heat convection
; Weather forecasting
; Aquaplanet
; Boundary layer turbulence
; EDMF
; Global climate simulations
; Large-scale precipitation
; Potential temperature
; Short-wave radiation
; Weather research and forecasting models
; Parameterization
英文摘要: Global climate simulations rely on parameterizations of physical processes that have scales smaller than the resolved ones. In the atmosphere, these parameterizations represent moist convection, boundary layer turbulence and convection, cloud microphysics, longwave and shortwave radiation, and the interaction with the land and ocean surface. These parameterizations can generate different climates involving a wide range of interactions among parameterizations and between the parameterizations and the resolved dynamics. To gain a simplified understanding of a subset of these interactions, we perform aquaplanet simulations with the global version of the Weather Research and Forecasting (WRF) model employing a range (in terms of properties) of moist convection and boundary layer (BL) parameterizations. Significant differences are noted in the simulated precipitation amounts, its partitioning between convective and large-scale precipitation, as well as in the radiative impacts. These differences arise from the way the subcloud physics interacts with convection, both directly and through various pathways involving the large-scale dynamics and the boundary layer, convection, and clouds. A detailed analysis of the profiles of the different tendencies (from the different physical processes) for both potential temperature and water vapor is performed. While different combinations of convection and boundary layer parameterizations can lead to different climates, a key conclusion of this study is that similar climates can be simulated with model versions that are different in terms of the partitioning of the tendencies: the vertically distributed energy and water balances in the tropics can be obtained with significantly different profiles of large-scale, convection, and cloud microphysics tendencies. © 2018. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75651
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: California Institute of Technology, Pasadena, CA, United States; Jet Propulsion Laboratory, California Institute of Technology, PasadenaCA, United States
Recommended Citation:
Bhattacharya R,, Bordoni S,, Suselj K,et al. Parameterization Interactions in Global Aquaplanet Simulations[J]. Journal of Advances in Modeling Earth Systems,2018-01-01,10(2)