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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 >


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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
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)
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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