RegCM4: model description and preliminary tests over multiple CORDEX domains
RegCM4: model description and preliminary tests over multiple CORDEX domains
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DOI：
10.3354/cr01018
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发表时间：
2012-01-01
期刊：
影响因子：
1.1
通讯作者：
Brankovic, C.
中科院分区：
文献类型：
--
作者：
Giorgi, F.;Coppola, E.;Brankovic, C.
RegCM 区域气候模拟系统的新版本 RegCM4 最近已开发出来并可供公众使用。与以前的版本相比，RegCM4包括新的陆地表面、行星边界层和海气通量方案、混合对流和热带带配置、对现有辐射传输和边界层方案的修改，以及模型代码的全面升级，以提高灵活性、可移植性和用户友好性。该模型可以与一维湖泊模型、简化的气溶胶方案（包括有机碳、黑碳、SO4、灰尘和海浪喷雾）和气相化学模块 (CBM-Z) 交互耦合。在对模型进行一般描述后，在 CORDEX 框架规定的 4 个领域（非洲、南美洲、东亚和欧洲）上进行了一系列测试实验，以提供不同气候条件下模型行为和敏感性的说明性示例。这些实验表明，总体而言，RegCM4 与以前的版本相比在多个方面表现出改进的性能，尽管需要用户社区进行进一步测试以充分探索其敏感性和应用范围。
A new version of the RegCM regional climate modeling system, RegCM4, has been recently developed and made available for public use. Compared to previous versions, RegCM4 includes new land surface, planetary boundary layer, and air-sea flux schemes, a mixed convection and tropical band configuration, modifications to the pre-existing radiative transfer and boundary layer schemes, and a full upgrade of the model code towards improved flexibility, portability, and user friendliness. The model can be interactively coupled to a 1D lake model, a simplified aerosol scheme (including organic carbon, black carbon, SO4, dust, and sea spray), and a gas phase chemistry module (CBM-Z). After a general description of the model, a series of test experiments are presented over 4 domains prescribed under the CORDEX framework (Africa, South America, East Asia, and Europe) to provide illustrative examples of the model behavior and sensitivities under different climatic regimes. These experiments indicate that, overall, RegCM4 shows an improved performance in several respects compared to previous versions, although further testing by the user community is needed to fully explore its sensitivities and range of applications.