A SIMPLE NUMERICAL-METHOD FOR HYDROSTATIC INCOMPRESSIBLE MODELS WITH RIGID LIDS

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Data

1993-12-01

Autores

Innocentini, Valdir
Ferreira, Nivaldo Silveira
Caetano Neto, Ernesto dos Santos [UNESP]

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Editor

Amer Meteorological Soc

Resumo

A simple and easily implemented method is developed to keep the vertical velocity equal to zero at the bottom and top of hydrostatic incompressible numerical models. The pressure is computed at the top by correcting its value given in the previous time step so that the vertical integral of the horizontal divergence is zero at each column. Numerical experiments that exhibit small time variations of pressure at the top are able to simplify the algorithm and save computer time. Numerical simulations illustrate the method effectiveness for a horizontal deformation-induced frontogenesis.

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Como citar

Monthly Weather Review. Boston: Amer Meteorological Soc, v. 121, n. 12, p. 3438-3442, 1993.