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DOI	10.1175/JCLI-D-19-0172.1
	Azimuthally averaged wind and thermodynamic structures of tropical cyclones in global climate models and their sensitivity to horizontal resolution
	Moon Y.; Kim D.; Camargo S.J.; Wing A.A.; Sobel A.H.; Murakami H.; Reed K.A.; Scoccimarro E.; Vecchi G.A.; Wehner M.F.; Zarzycki C.M.; Zhao M.
发表日期	2020
ISSN	0894-8755
起始页码	1575
结束页码	1595
卷号	33 期号:4
英文摘要	Characteristics of tropical cyclones (TCs) in global climate models (GCMs) are known to be influenced by details of the model configurations, including horizontal resolution and parameterization schemes. Understanding model-to-model differences in TC characteristics is a prerequisite for reducing uncertainty in future TC activity projections by GCMs. This study performs a process-level examination of TC structures in eight GCM simulations that span a range of horizontal resolutions from 18 to 0.258. A recently developed set of process-oriented diagnostics is used to examine the azimuthally averaged wind and thermodynamic structures of the GCM-simulated TCs. Results indicate that the inner-core wind structures of simulated TCs are more strongly constrained by the horizontal resolutions of the models than are the thermodynamic structures of those TCs. As expected, the structures of TC circulations become more realistic with smaller horizontal grid spacing, such that the radii of maximum wind (RMW) become smaller, and the maximum vertical velocities occur off the center. However, the RMWs are still too large, especially at higher intensities, and there are rising motions occurring at the storm centers, inconsistently with observations. The distributions of precipitation, moisture, and radiative and surface turbulent heat fluxes around TCs are diverse, even across models with similar horizontal resolutions. At the same horizontal resolution, models that produce greater rainfall in the inner-core regions tend to simulate stronger TCs. When TCs are weak, the radial gradient of net column radiative flux convergence is comparable to that of surface turbulent heat fluxes, emphasizing the importance of cloud-radiative feedbacks during the early developmental phases of TCs. © 2020 American Meteorological Society.
英文关键词	Heat flux; Hurricanes; Storms; Tropics; Global climate model; Horizontal grid spacing; Horizontal resolution; Model configuration; Parameterization schemes; Thermodynamic structures; Turbulent heat fluxes; Vertical velocity; Climate models; atmospheric moisture; azimuth; climate modeling; global climate; heat flux; parameterization; precipitation (climatology); thermodynamics; tropical cyclone; uncertainty analysis; wind
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171440
作者单位	Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; Department of Earth Ocean and Atmospheric Science, Florida State University, Tallahassee, FL, United States; Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, United States; Department of Earth and Environmental Sciences, Columbia University, New York, NY, United States; NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; School of Marine and Atmospheric Sciences, Stony Brook University, State University of New York, Stony Brook, NY, United States; Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici, Bologna, Italy; Geosciences Department, Princeton University, Princeton, NJ, United States; Princeton Environmental Institute, Princeton University, Princeton, NJ, United States; Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Department of Meteor...
推荐引用方式 GB/T 7714	Moon Y.,Kim D.,Camargo S.J.,et al. Azimuthally averaged wind and thermodynamic structures of tropical cyclones in global climate models and their sensitivity to horizontal resolution[J],2020,33(4).
APA	Moon Y..,Kim D..,Camargo S.J..,Wing A.A..,Sobel A.H..,...&Zhao M..(2020).Azimuthally averaged wind and thermodynamic structures of tropical cyclones in global climate models and their sensitivity to horizontal resolution.Journal of Climate,33(4).
MLA	Moon Y.,et al."Azimuthally averaged wind and thermodynamic structures of tropical cyclones in global climate models and their sensitivity to horizontal resolution".Journal of Climate 33.4(2020).