DOI: 10.1002/2013MS000295
Scopus记录号: 2-s2.0-84899097139
论文题名: Modeling the moist-convective atmosphere with a Quasi-3-D Multiscale Modeling Framework (Q3D MMF)
作者: Jung J ; -H ; , Arakawa A
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2014
卷: 6, 期: 1 起始页码: 185
结束页码: 205
语种: 英语
英文关键词: Climate models
; Vortex flow
; Cloud effects
; Cloud resolving model
; General circulation model
; Lateral boundary conditions
; Multi-scale Modeling
; Q3D MMF
; Superparameterization
; Surface precipitation
; Three dimensional
; atmospheric convection
; boundary condition
; climate modeling
; diabatic process
; general circulation model
; parameterization
; timescale
; tropical cyclone
英文摘要: The Q3D MMF (Quasi-Three-Dimensional Multiscale Modeling Framework) is a new generation of MMF that replaces the conventional subgrid-scale parameterizations in general circulation models (GCMs) with explicit simulations of cloud and associated processes by cloud-resolving models (CRMs). In the Q3D MMF, 3-D CRMs are applied to the channel domains that extend over GCM grid cells. To avoid "double counting" of the large-scale effects, only the eddy effects simulated by the CRMs are implemented into the GCM as far as the transports are concerned, while the total effects are implemented for diabatic processes. The CRMs recognize the large-scale horizontal inhomogeneity through the lateral boundary conditions obtained from the GCM through interpolation. To maintain compatibility between the GCM and CRMs, the averages of CRM variables over the GCM grid spacing are relaxed to the corresponding GCM variables with the advective time scale. To evaluate the Q3D MMF, a transition from a wave to strong vortices is simulated in an idealized horizontal domain. Comparison with a fully 3-D benchmark simulation shows that the Q3D MMF successfully predicts the evolution of the vortices. It also captures important statistics such as the domain-averaged surface precipitation rate, turbulent fluxes and subgrid-scale (co)variances. From tests with 3-D and 2-D CRMs, respectively, it is concluded that the ability to recognize large-scale inhomogeneities is primarily responsible for the successful performance of the Q3D MMF. It is also demonstrated that the use of two perpendicular sets of CRMs has positive impacts on the simulation. Key Points Q3D MMF, a new generation of superparameterization, has been developed It is evaluated with simulations of tropical cyclone in an idealized domain Encouraging results suggest its potential for future NWP and climate models © 2014. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/76088
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: Department of Atmospheric Science, Colorado State University, Colorado, United States; Department of Atmospheric and Oceanic Sciences, UCLA, California, United States
Recommended Citation:
Jung J,-H,, Arakawa A. Modeling the moist-convective atmosphere with a Quasi-3-D Multiscale Modeling Framework (Q3D MMF)[J]. Journal of Advances in Modeling Earth Systems,2014-01-01,6(1)