Výsledky vyhledávání - "Hirotada Kanehisa"

Analytical Solutions of Initial Value Problem of Diabatic Rossby Waves

Publikováno v: Journal of the Meteorological Society of Japan. Ser. II. 89:161-169

The initial value problem of diabatic Rossby waves is analytically solved in a vertical-zonal two-dimensional quasi-geostrophic system on an f-plane. The given basic state is in thermal-wind-balance, and dry baroclinic instability is excluded. The di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::048c70e4e20c7330b17d8fd4a88250dd
https://doi.org/10.2151/jmsj.2011-205

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Analytical Solutions of Vertically Propagating Gravity Waves—from the Perspective of Buoyancy-Vorticity Thinking

Autor: Hirotada Kanehisa, Mayuko Oda

Publikováno v: Journal of the Meteorological Society of Japan. Ser. II. 88:227-238

On the basis of buoyancy-vorticity (BV) formulation of Harnik et al. (2008), the initial value problem of vertically propagating gravity waves is analytically solved in a zonal-vertical two-dimensional system. The analytical solutions provide an exam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d31934fa87018480524ec3227cbe476
https://doi.org/10.2151/jmsj.2010-207

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Analytical Solutions of Transversely Propagating Rossby Waves

Autor: Hirotada Kanehisa, Mayuko Oda

Publikováno v: Journal of the Meteorological Society of Japan. Ser. II. 87:205-213

In the horizontally 2-dimensional quasi-geostrophic system, we construct analytical solutions of transversely propagating Rossby waves across the basic zonal flow. On the assumption that the basic potential vorticity is piece-wise constant in the mer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6586b834eab7f818d8b768fe6310e5f3
https://doi.org/10.2151/jmsj.87.205

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Degenerate Modes of Gravitational, Barotropic and Baroclinic Instabilities

Autor: Hirotada Kanehisa, Mayuko Oda

Publikováno v: Journal of the Meteorological Society of Japan. Ser. II. 87:505-511

In normal mode analysis, the unstable mode grows as an exponential function of time, and the stable mode oscillates as a trigonometric function of time. At a critical point of the relevant parameter space, the mode becomes marginally unstable. The ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6dc42009c4ae2c04cf7b9dbe97bc7795
https://doi.org/10.2151/jmsj.87.505

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