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北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第65巻 第2号 >
非回転系における内部重力波の分散性
Title: | 非回転系における内部重力波の分散性 |
Other Titles: | Dispersion properties of internal gravity waves in the non-rotational system |
Authors: | 磯田, 豊1 Browse this author →KAKEN DB |
Authors(alt): | Isoda, Yutaka1 |
Keywords: | Internal gravity waves | Non-rotational system | Ray-tracing | Mode-waves | Two-layer model |
Issue Date: | 20-Aug-2015 |
Publisher: | 北海道大学大学院水産科学研究院 |
Journal Title: | 北海道大学水産科学研究彙報 |
Volume: | 65 |
Issue: | 2 |
Start Page: | 77 |
End Page: | 91 |
Abstract: | In a continuously stratified fluid, the frequency of internal gravity waves depends only on the angle that the wavenumber makes with horizonal, i.e., the polarization relation in the non-rotational system. That is, the group velociity of internal wave is at right angles to the wavenumber vector, and hence its propagation characteristics are studied by "theory of ray-tracing". On the other hand, under the restriction on vertical scale, the behavior of internal wave can be frequently discussed by using "theory of decomposed mode-waves" or "two-layer approximate model". I try to do original interpretation as for the physical relationship between these three theories. |
Type: | bulletin (article) |
URI: | http://hdl.handle.net/2115/59784 |
Appears in Collections: | 北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第65巻 第2号
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