Innocentini, ValdirFerreira, Nivaldo SilveiraCaetano Neto, Ernesto dos Santos [UNESP]2014-05-202014-05-201993-12-01Monthly Weather Review. Boston: Amer Meteorological Soc, v. 121, n. 12, p. 3438-3442, 1993.0027-0644http://hdl.handle.net/11449/31080A 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.3438-3442engArtigo10.1175/1520-0493(1993)121<3438:ASNMFH>2.0.CO;2WOS:A1993ML34400014Acesso abertoWOSA1993ML34400014.pdf