The dynamical core, physical parameterizations, and basic simulation characteristics of the atmospheric component of the GFDL global coupled model CM3
The dynamical core, physical parameterizations, and basic simulation characteristics of the atmospheric component of the GFDL global coupled model CM3
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GFDL全球耦合模型CM3大气成分的动力核心、物理参数化和基本模拟特征
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
F. Zeng
中科院分区：
文献类型：
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作者：
L. Donner;B. Wyman;R. Hemler;L. Horowitz;Y. Ming;Ming Zhao;J. Golaz;P. Ginoux;Shian;M. Schwarzkopf;John Austin;G. Alaka;W. Cooke;T. Delworth;S. Freidenreich;C. T. Gordon;S. Griffies;I. Held;W. Hurlin;S. A. Klein;T. Knutson;A. R. Langenhorst;Hyun;Yanluan Lin;B. Magi;S. Malyshev;P. Milly;Naik;M. Nath;R. Pincus;J. Ploshay;Ramaswamy;C. Seman;E. Shevliakova;J. Sirutis;W. Stern;Ronald J. Stouffer;R. J. Wilson;M. Winton;A. Wittenberg;F. Zeng
地球物理流体动力学实验室(GFDL)开发了一个大气、海洋、陆地和海冰的耦合大气环流模式(CM3)。CM3的目标是解决气候变化中新出现的问题，3包括气溶胶-云相互作用、化学-气候相互作用以及对流层和平流层之间的耦合4。该模式还被设计为作为地球系统模式的物理系统组件，并为近期十年预报提供了6个ELS，例如，通过对热带陆地降水的IM7验证模拟，相对于前一代8 GFDL模式。本文描述了该模式大气分量10(AM3)的动力核心、物理参数和基本模拟特征。11与GFDL AM2相比，AM3包括新的处理方法，包括深层和浅部12低积云对流、气溶胶激活云滴、用于液滴激活的层状垂直速度的次网格变化13以及由平流、对流和湍流输送的排放物驱动的大气14化学。AM3采用有限体积16动力核的立方体实现，并与LM3耦合，LM3是一个新的陆地模型，具有生态系统17动力学和水文学。与AM2相比，AM3的18个基本环流特征被模拟得更逼真，或者多了19个。特别是，在南美洲，干性偏见已经减少。在耦合模式中，对北极海冰集中21的模拟有所改进。AM3气溶胶光学厚度、散射特性和表面22
The Geophysical Fluid Dynamics Laboratory (GFDL) has developed a 1 coupled general circulation model (CM3) for atmosphere, oceans, land, and 2 sea ice. The goal of CM3 is to address emerging issues in climate change, 3 including aerosol-cloud interactions, chemistry-climate interactions, and cou4 pling between the troposphere and stratosphere. The model is also designed 5 to serve as the physical-system component of earth-system models and mod6 els for decadal prediction in the near-term future, for example, through im7 proved simulations in tropical land precipitation relative to earlier-generation 8 GFDL models. This paper describes the dynamical core, physical parameter9 izations, and basic simulation characteristics of the atmospheric component 10 (AM3) of this model. 11 Relative to GFDL AM2, AM3 includes new treatments of deep and shal12 low cumulus convection, cloud-droplet activation by aerosols, sub-grid vari13 ability of stratiform vertical velocities for droplet activation, and atmospheric 14 chemistry driven by emissions with advective, convective, and turbulent 15 transport. AM3 employs a cubed-sphere implementation of a finite-volume 16 dynamical core and is coupled to LM3, a new land model with eco-system 17 dynamics and hydrology. 18 Most basic circulation features in AM3 are simulated as realistically, or 19 more so, than in AM2. In particular, dry biases have been reduced over South 20 America. In coupled mode, the simulation of Arctic sea ice concentration 21 has improved. AM3 aerosol optical depths, scattering properties, and surface 22