The performance of FLake in the Met Office Unified Model
The performance of FLake in the Met Office Unified Model
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DOI：
10.3402/tellusa.v65i0.21363
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发表时间：
2013-12
期刊：
影响因子：
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通讯作者：
G. Rooney;F. J. Bornemann
中科院分区：
文献类型：
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作者：
G. Rooney;F. J. Bornemann
我们展示了 FLake 与英国气象局统一模型 (MetUM) 耦合的结果。首先描述耦合和初始化，并给出在局部和全局模型配置中测试耦合模型的结果。这些表明 FLake 对屏幕温度的统计影响很小，但有可能改变重要内陆水域地区附近的天气。对片状湖冰的检查表明，耦合模型中湖泊的行为在某些重要的子网格地形区域中是不现实的。提出了改善这种行为的各种修改的测试。结果表明哪种可能的模型变化最能改善湖冰的年度循环。由于 FLake 完全是在统一模型系统之外开发和调整的，因此这些结果可以解释为对统一模型近地表特性性能的有用客观衡量标准。
We present results from the coupling of FLake to the Met Office Unified Model (MetUM). The coupling and initialisation are first described, and the results of testing the coupled model in local and global model configurations are presented. These show that FLake has a small statistical impact on screen temperature, but has the potential to modify the weather in the vicinity of areas of significant inland water. Examination of FLake lake ice has revealed that the behaviour of lakes in the coupled model is unrealistic in some areas of significant sub-grid orography. Tests of various modifications to ameliorate this behaviour are presented. The results indicate which of the possible model changes best improve the annual cycle of lake ice. As FLake has been developed and tuned entirely outside the Unified Model system, these results can be interpreted as a useful objective measure of the performance of the Unified Model in terms of its near-surface characteristics.