DOI: 10.1175/JCLI-D-14-00729.1
Scopus记录号: 2-s2.0-84942910911
论文题名: Exploring a multiresolution approach using AMIP simulations
作者: Sakaguchi K. ; Leung L.R. ; Zhao C. ; Yang Q. ; Lu J. ; Hagos S. ; Rauscher S.A. ; Dong L. ; Ringler T.D. ; Lauritzen P.H.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 14 起始页码: 5549
结束页码: 5574
语种: 英语
Scopus关键词: Clouds
; Heat convection
; Precipitation (chemical)
; Precipitation (meteorology)
; Atmospheric model intercomparison projects
; Computationally efficient
; High resolution simulations
; Large-scale circulation
; Model evaluation/performance
; Multi-grid model
; Multi-resolution approach
; Surface heterogeneities
; Climate models
; atmospheric modeling
; climate modeling
; cloud microphysics
; convective system
; experimental study
; moisture transfer
; precipitation assessment
; regional climate
; resolution
; weather forecasting
; North America
; South America
英文摘要: This study presents a diagnosis of a multiresolution approach using the Model for Prediction Across Scales-Atmosphere (MPAS-A) for simulating regional climate. Four Atmospheric Model Intercomparison Project (AMIP) experiments were conducted for 1999-2009. In the first two experiments, MPAS-A was configured using global quasi-uniform grids at 120- and 30-km grid spacing. In the other two experiments, MPAS-A was configured using variable-resolution (VR) mesh with local refinement at 30km over North America and South America and embedded in a quasi-uniform domain at 120km elsewhere. Precipitation and related fields in the four simulations are examined to determine how well the VRs reproduce the features simulated by the globally high-resolution model in the refined domain. In previous analyses of idealized aquaplanet simulations, characteristics of the global high-resolution simulation in moist processes developed only near the boundary of the refined region. In contrast, AMIP simulations with VR grids can reproduce high-resolution characteristics across the refined domain, particularly in South America. This finding indicates the importance of finely resolved lower boundary forcings such as topography and surface heterogeneity for regional climate and demonstrates the ability of the MPAS-A VR to replicate the large-scale moisture transport as simulated in the quasi-uniform high-resolution model. Upscale effects from the high-resolution regions on a large-scale circulation outside the refined domain are observed, but the effects are mainly limited to northeastern Asia during the warm season. Together, the results support the multiresolution approach as a computationally efficient and physically consistent method formodeling regional climate. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50519
Appears in Collections: 气候变化事实与影响
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作者单位: Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; Department of Geography, University of Delaware, Newark, DE, United States; School of Forestry and Wildlife Sciences, Auburn University, Auburn, AL, United States; Theoretical Division, Climate, Ocean, and Sea Ice Modeling Group, Los Alamos National Laboratory, Los Alamos, NM, United States; Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, United States
Recommended Citation:
Sakaguchi K.,Leung L.R.,Zhao C.,et al. Exploring a multiresolution approach using AMIP simulations[J]. Journal of Climate,2015-01-01,28(14)