Gravity wave transmission diagram
Gravity wave transmission diagram
复制标题
重力波传输图
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Y. Tomikawa
中科院分区：
文献类型：
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作者：
Y. Tomikawa
抽象的。最近提出了一种从气辉观测中获得重力波功率谱分布的新方法，它是地面水平相速度和传播方向的函数。为了解释重力波功率谱各向异性，本研究开发了一种新的重力波传输图。重力波的透射率取决于波的临界能级和转折能级的存在，这些能级是由背景水平风分布决定的。垂直切变不变的简单背景水平风中不同水平波长的重力波传播图表明，转折水平反射的影响是显著的，并且强烈地依赖于水平波长。
Abstract. A new method of obtaining power spectral distribution of gravity waves as a function of ground-based horizontal phase speed and propagation direction from airglow observations has recently been proposed. To explain gravity wave power spectrum anisotropy, a new gravity wave transmission diagram was developed in this study. Gravity wave transmissivity depends on the existence of critical and turning levels for waves that are determined by background horizontal wind distributions. Gravity wave transmission diagrams for different horizontal wavelengths in simple background horizontal winds with constant vertical shear indicate that the effects of the turning level reflection are significant and strongly dependent on the horizontal wavelength.