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Numerical simulations of buoyancy dr...

Keating, Johnwill.

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Numerical simulations of buoyancy driven abyssal ocean currents on the sphere.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Numerical simulations of buoyancy driven abyssal ocean currents on the sphere./
作者:	Keating, Johnwill.
面頁冊數:	139 p.
附註:	Source: Masters Abstracts International, Volume: 48-03, page: 1673.
Contained By:	Masters Abstracts International48-03.
標題:	Applied Mathematics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR54718
ISBN:	9780494547182

Numerical simulations of buoyancy driven abyssal ocean currents on the sphere.
Keating, Johnwill.

Numerical simulations of buoyancy driven abyssal ocean currents on the sphere. - 139 p.

Source: Masters Abstracts International, Volume: 48-03, page: 1673.

Thesis (M.Sc.)--University of Alberta (Canada), 2009.

This thesis is a numerical process study of a buoyancy driven abyssal current flowing along a sloping bottom on the rotating sphere. First, the spherical shallow water equations are derived using the covariant derivative. Second, a numerical scheme that uses second order spatial finite differences and third order Adams Bashforth time stepping is presented with parallel computing in mind. Finally, the results of several numerical simulations are presented using 3D perspective computer graphics. The simulation domain is an idealized basin with an abyssal water source in the Northwest sector. The abyssal current flows southward along the sloping topography in a manner consistent with quasi-geostrophic theory. The abyssal water source sheds coupled plumes and overlaying vortices. The period of this shedding is investigated, and there are three qualitatively different shedding behaviours. There can be no shedding at all, the shedding can be highly regular, or the shedding can be irregular and turbulent.

ISBN: 9780494547182Subjects--Topical Terms:

1669109
Applied Mathematics.

Numerical simulations of buoyancy driven abyssal ocean currents on the sphere.
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502 $a Thesis (M.Sc.)--University of Alberta (Canada), 2009.
520 $a This thesis is a numerical process study of a buoyancy driven abyssal current flowing along a sloping bottom on the rotating sphere. First, the spherical shallow water equations are derived using the covariant derivative. Second, a numerical scheme that uses second order spatial finite differences and third order Adams Bashforth time stepping is presented with parallel computing in mind. Finally, the results of several numerical simulations are presented using 3D perspective computer graphics. The simulation domain is an idealized basin with an abyssal water source in the Northwest sector. The abyssal current flows southward along the sloping topography in a manner consistent with quasi-geostrophic theory. The abyssal water source sheds coupled plumes and overlaying vortices. The period of this shedding is investigated, and there are three qualitatively different shedding behaviours. There can be no shedding at all, the shedding can be highly regular, or the shedding can be irregular and turbulent.
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