globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2015MS000570
Scopus ID: 2-s2.0-84978322432
Title:
Intercomparison of methods of coupling between convection and large-scale circulation: 2. Comparison over nonuniform surface conditions
Author: Daleu C; L; , Plant R; S; , Woolnough S; J; , Sessions S; , Herman M; J; , Sobel A; , Wang S; , Kim D; , Cheng A; , Bellon G; , Peyrille P; , Ferry F; , Siebesma P; , Van Ulft L
Source Publication: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
Publishing Year: 2016
Volume: 8, Issue:1
pages begin: 387
pages end: 405
Language: 英语
Keyword: Parameterization ; Cloud resolving model ; International intercomparison ; Large-scale circulation ; Large-scale dynamics ; Parameterization method ; Parameterized ; Radiative-convective equilibrium ; Tropical convection ; Oceanography ; atmospheric dynamics ; atmospheric modeling ; convection ; coupling ; general circulation model ; numerical method ; parameterization ; precipitation (climatology) ; sensitivity analysis ; temperature gradient
English Abstract: As part of an international intercomparison project, the weak temperature gradient (WTG) and damped gravity wave (DGW) methods are used to parameterize large-scale dynamics in a set of cloud-resolving models (CRMs) and single column models (SCMs). The WTG or DGW method is implemented using a configuration that couples a model to a reference state defined with profiles obtained from the same model in radiative-convective equilibrium. We investigated the sensitivity of each model to changes in SST, given a fixed reference state. We performed a systematic comparison of the WTG and DGW methods in different models, and a systematic comparison of the behavior of those models using the WTG method and the DGW method. The sensitivity to the SST depends on both the large-scale parameterization method and the choice of the cloud model. In general, SCMs display a wider range of behaviors than CRMs. All CRMs using either the WTG or DGW method show an increase of precipitation with SST, while SCMs show sensitivities which are not always monotonic. CRMs using either the WTG or DGW method show a similar relationship between mean precipitation rate and column-relative humidity, while SCMs exhibit a much wider range of behaviors. DGW simulations produce large-scale velocity profiles which are smoother and less top-heavy compared to those produced by the WTG simulations. These large-scale parameterization methods provide a useful tool to identify the impact of parameterization differences on model behavior in the presence of two-way feedback between convection and the large-scale circulation. © 2016. The Authors.
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被引频次[WOS]:10   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Identifier: http://119.78.100.158/handle/2HF3EXSE/75938
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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Affiliation: Department of Meteorology, University of Reading, Reading, United Kingdom; National Centre for Atmospheric Science, Department of Meteorology, University of Reading, Reading, United Kingdom; Department of Physics, New Mexico Tech, Socorro, NM, United States; Department of Environmental Sciences, Columbia University, New York, NY, United States; Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, United States; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Climate Science Branch, NASA Langley Research Centre, Hampton, VA, United States; Department of Physics, University of Auckland, Auckland, New Zealand; Meteo France, Toulouse, France; Royal Netherlands Meteorological Institute, De Bilt, Netherlands; Delft University of Technology, Delft, Netherlands

Recommended Citation:
Daleu C,L,, Plant R,et al. Intercomparison of methods of coupling between convection and large-scale circulation: 2. Comparison over nonuniform surface conditions[J]. Journal of Advances in Modeling Earth Systems,2016-01-01,8(1)
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