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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >IMPROVED SURFACE AND BOUNDARY LAYER MODELS FOR THE GODDARD INSTITUTE FOR SPACE STUDIES GENERAL CIRCULATION MODEL
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IMPROVED SURFACE AND BOUNDARY LAYER MODELS FOR THE GODDARD INSTITUTE FOR SPACE STUDIES GENERAL CIRCULATION MODEL

机译：哥达太空研究所一般循环模型的改进的表面和边界层模型

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摘要

Improved surface and boundary layer models have been developed and implemented in the Goddard Institute for Space Studies (GISS) general circulation model (GCM). The new boundary layer model retains the methodology of the Model 2 version in which the surface winds are interpolated using a model profile but amends the approximations that were previously used to keep the model analytical for ease of computation. The new surface layer model is entirely different than that previously used in the GISS GCM and uses similarity theory to compute the transport coefficients, drag coefficient, Dalton number, and Stanton number. The combination yields distinct improvements in the general circulation characteristics of the GISS GCM. The new boundary layer and surface models were chosen to allow surface properties to be precomputed, resulting in minimal impact to the overall execution time. This is particularly important in a GCM used for climate experiments with timescales spanning centuries. [References: 23]
机译：戈达德空间研究所（GISS）的一般环流模型（GCM）已开发并实施了改进的表面和边界层模型。新的边界层模型保留了模型2版本的方法，其中使用模型轮廓对表面风进行插值，但修改了以前用于使模型保持分析性的近似值，以简化计算。新的表面层模型与以前在GISS GCM中使用的模型完全不同，并使用相似性理论来计算运输系数，阻力系数，道尔顿数和斯坦顿数。该组合可显着改善GISS GCM的总体循环特性。选择新的边界层和表面模型以允许预先计算表面特性，从而对整体执行时间的影响最小。对于用于跨世纪的气候实验的GCM，这尤其重要。 [参考：23]

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