The air flow over a ridge — the effects of the upper boundary and high-level conditions
The air flow over a ridge — the effects of the upper boundary and high-level conditions
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山脊上的气流——上边界和高层条件的影响
DOI：
10.1002/qj.49708435904
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发表时间：
1958
影响因子：
8.9
通讯作者：
J. S. Sawyer
中科院分区：
文献类型：
--
作者：
G. A. Corby;J. S. Sawyer
用摄动理论得到的山脊上气流的解取决于在得到解的区域的上边界上施加的数学条件。对于适合大气问题的上边界条件的选择，发展了新的论点；这导致了Queney(1947)已经采用的解决方案。
在某些气流中，背风波可能在对流层上层和平流层有最大的振幅。高空气流的特征在决定这些波的特征方面起着主导作用，但对更常见的、在对流层低层波幅最大的背风波的影响可以忽略不计。
The solution obtained by perturbation theory for the airflow over a ridge depends on the mathematical conditions imposed at the upper boundary of the region for which a solution is obtained. New arguments are developed as to the choice of upper-boundary condition appropriate to the atmospheric problem; these lead to the solution already adopted by Queney (1947).
In certain airstreams it is possible for lee waves to have their largest amplitude in the upper troposphere and stratosphere. The character of the airstream at high levels plays a dominant part in determining the characteristics of these waves, but it has only negligible effects on the more familiar type of lee wave which has its largest amplitude in the lower troposphere.