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A Reformed Global Climate Model Extended from Troposphere up to Stratosphere
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摘要: 采用Arakawa的σ-p混合坐标，将李维亮等人发展的一个二维全球原始方程模式由对流层扩展到平流层中层(10 hPa)。垂直分层采用等lnp方案。发展后的模式不仅在计算上具有很好的稳定性，而且能较好地模拟平均温度场、平均纬向风场和平均经向风场及其季节性变化。同时，在模式对流层之上加上平流层后改善了对流层上层环流的模拟。Abstract: Using Arakawa’s “σ‐p” coordinate, a two-dimensional global tropospheric model was reformed and extended up to stratosphere in the vertical level. The developed model not only has good stability in computation, but also the good performance to simulate the general feature of the mean temperature, mean zonal and meridional motion and their seasonal variation. It is also proved that the extension of the vertical level onto the stratosphere in a general circulation model is able to improve the description of the upper tropospheric circulation
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