A lateral boundary formulation for multi-level prediction models. [numerical weather forecasting
A lateral boundary formulation for multi-level prediction models. [numerical weather forecasting
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DOI：
10.1002/qj.49710243210
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发表时间：
1976-04
期刊：
影响因子：
--
通讯作者：
H. Davies
中科院分区：
文献类型：
--
作者：
H. Davies
提出了一种处理有限区域天气预报模型横向边界的方法。该方法涉及将边界附近的内部流动松弛到外部完全规定的流动。通过线性化多级模型获得的分析和数值结果证实了这种计算有效方法的有效性。该方法被证明能够充分表示有和没有环境剪切流的传出重力波，并允许地转平衡流基本上不失真地传输出有限域的内部。
A method is proposed for treating the lateral boundaries of a limited-area weather prediction model. The method involves the relaxation of the interior flow in the vicinity of the boundary to the external fully prescribed flow. Analytical and numerical results obtained with a linearized multilevel model confirm the effectiveness of this computationally effective method. The method is shown to give an adequate representation of outgoing gravity waves with and without an ambient shear flow and to allow the substantially undistorted transmission of geostrophically balanced flow out of the interior of the limited domain.